The Most Common Reasons a Music Release Gets Delayed (and How to Avoid Every One)

Most releases go live without a hitch. About 90% of releases submitted through LabelGrid clear review on the first pass, and the small share that need a second look almost always clear in barely more than one round of changes. So if you are wondering why music releases get delayed, the honest answer is that most do not. The few that wait are usually held up by one small, fixable thing the artist did not know to check before submitting, and it is almost always the same handful of things.

Every release goes through a real review before it reaches a store, and that review has one job: to catch the things a store would otherwise reject, before they cost you a delivery cycle. A flag is not a stop sign, though. Most of what review catches is a fix-and-go note that never touches your timeline at all, while a smaller set genuinely holds delivery until it is resolved. This guide covers both, grouped into a few clear areas. For each one you get the issues that come up most often, the ones that are a hard stop rather than a quick note, the store-side requirement behind them, and the fix. If you are migrating an older catalog, there is a section near the end on why that work takes longer, and why it does not cost you the streams you have already earned.

The themes behind almost every release delay

Across a year of reviews, the same issues recur, and they fall into a few clear groups. The theme is more useful than the list: once you understand why something gets flagged, you tend to fix it once and stop hitting it.

1. Audio quality

Audio is the most common technical reason a release gets flagged, and a bitrate mismatch leads the group. It is the second most common issue overall. It usually means the file was exported, re-encoded, or converted somewhere along the chain, so the actual audio no longer matches the format the metadata claims. The classic case is a file labelled lossless that quietly passed through an MP3 stage on its way to you. Automated checks catch that instantly. Start from a true lossless master, deliver WAV or FLAC at the spec your distributor asks for, and never run the file through a lossy format before upload. If you bounce a new master, replace the file rather than re-compress the old one.

Digital clipping is the next most frequent audio problem, flagged on roughly one in five releases. It happens when the signal is pushed past 0 dBFS and the waveform gets squared off, which produces audible distortion. In some genres a little of it is deliberate, so a light flag here is a prompt to check the file, not a stop. Leave headroom anyway: a true peak below 0 dBFS, with a ceiling around -1 dBTP, keeps you safe across platforms that apply their own loudness normalization. It matters because the store encodes the master you send. Apple, for one, auditions a master as encoded by its own AAC encoder and notes that audible clipping from excessive levels can keep it from earning the Apple Digital Masters badge.

The one audio issue in this group that actually holds a release is detected silence. When analysis finds a significant stretch of quiet at the start, the end, or inside a track, the release is held, because that pattern almost always points to a real problem: a technical encoding issue, a missed edit point, or unintentional dead air. The check exists so a technically broken file does not reach a store under your name. The fix is quick once you know to look: play the track through to the end, trim any dead air off the front and back, confirm the edit is clean, and re-upload. The habit that prevents the whole audio group is the same one: master to spec, then listen to the exact file you are delivering.

2. Lyrics and credits

Missing lyrics is the single most common issue at review. Lyrics feel optional because the release goes out either way, but many platforms display synced or static lyrics, and complete metadata helps your music surface in search and recommendations. A track with no lyrics shows nothing where listeners look for them. The fix is fast: add accurate, plain-text lyrics that match the recording for every vocal track, exactly as sung, before you submit. Instrumental? Mark it as such and it is never flagged.

Credits sit in the same theme and matter more than they used to. Every track needs a credit in three areas: someone who performed it, someone who wrote it, and someone who produced or engineered it. Past that, the rest of the metadata has to be coherent. A vocal track needs its language set, a writer needs to be named, and the roles need to line up with the audio that is actually there. Small incongruities, a blank language tag or a missing writer, are exactly what review catches, and each one is quick to clear when you fill it in as you build the release. Get them right the first time, because stores increasingly require this data and the songwriting credits in particular are part of how publishing royalties get matched to the right people. The migration section below explains why that shift happened and why older catalogs trip over it.

3. Identifiers

Identifiers are a smaller theme, but the one people most often misunderstand, so it is worth getting the model right. These codes are how every store recognizes your release, which means two things have to be true: you carry the right codes, and the metadata around them lines up. When the same recording turns up with a code a store already knows but details that do not match what it has on file, you get an error. That is not an accusation that you broke a rule. It is the identifier and the metadata being required to agree before a store will accept them, and on a migration that agreement is the whole game.

Here is how the codes actually work. An ISRC identifies a recording, and per the IFPI, the body that runs the standard, it stays with that recording for life. Per the ISRC FAQ, the same recording keeps the same ISRC everywhere it appears, including across different albums and a later remaster of the same master. You only generate a new ISRC for a genuinely new recording, which includes a remix, an edit, or any version where the runtime changes by more than ten seconds. The one thing you never do is point a single ISRC at two different recordings. A UPC, managed by GS1, identifies a release as a product, so each distinct release gets its own UPC, while the same product keeps the same UPC wherever it goes. Not confident assigning codes for a brand-new recording? Let your distributor generate them and the guesswork disappears.

4. Artist identity

Artist identity issues turn up on roughly one in eighteen releases, when artist links or profile details are missing or do not match. This slows the step where your release is matched to the right artist on each platform, and it decides whether your music lands on your existing profile or accidentally spins up a new one. Fill in your artist links, your Spotify URI, your Apple Music artist page, and your socials, and complete your profile before you submit. If you are a new artist with no profile yet, say so, so the release is set up to create one cleanly rather than guess.

5. Artwork

Artwork that is too small or off-spec is one of the rarer flags, on about one in fifty-five covers, but it is a hard stop when it happens, because stores reject low-resolution art outright. The safe standard is a square image at 3000×3000 pixels, which is the size Apple recommends (above its 1400×1400 minimum) and comfortably clears the major stores’ size requirements at once. Spotify asks for a square 1:1 image in sRGB, lossless, with no upscaling. Across the board the rules agree in spirit: square, high resolution, JPEG or PNG, and no promotional text, URLs, or social handles on the cover. Export a clean 3000×3000 square and you will not think about this one again.

6. Release setup and timing

The last theme is small consistency problems in how the release is set up, each quick to fix on a final pass. Payment and tax details not being set up is the standout here, on about one in five releases. It does not touch the music, it touches you: an approved release does you no good if you cannot be paid for it, so set up your payout method and tax details before your first release, not after. The rest of the theme is metadata that does not line up: a release genre that does not match the genres on the tracks (about one in twenty-eight), or a release date set in the past. A past date is the one that actually holds a release: stores deliver against a future date and will not run one that has already gone by, and Spotify, for instance, will not accept a date more than three days behind. For a new release the fix is simply to set the date a few days out. A migrated catalog is the exception, and the section below covers why. None of this is hard. It just needs someone to read the metadata back once before submitting.

What actually blocks a release versus what is just a flag

Here is the part most artists get backwards. The most common issues above do not stop your release. Missing lyrics, a bitrate mismatch, an incomplete profile, a little clipping: these get flagged so you can fix them, but on their own they do not hold delivery.

The ones most likely to actually hold a release are a shorter, different set: detected silence on a track, artwork below the minimum size, a release date set in the past, and an identifier or core metadata that does not match what a store already has for the same recording. So do not panic over a flag, but give that set a deliberate look before you submit. Play the track through to the end to be sure there is no dead air, confirm the artwork is a full square 3000×3000, set a release date a few days out, and make sure your codes and core metadata match the release you are actually putting out.

Migrating an older catalog? You keep your streams, you complete your credits

Moving an older catalog from another distributor takes longer than a batch of fresh releases. But you do not lose your streams, saves, or playlists. That is the part people worry about, and it is the part that is safe. Stores re-link a release by its ISRC and UPC, so when you bring a release over with the same codes you already own and matching audio and core metadata, the platforms recognize it as the same release and your listening history is preserved. A common pitfall here, and one we see often on migrations, is the release date. Set each release to its original release date, the one it first came out under, not today’s. Stores re-link your release by its ISRC and UPC, not by the date, so your streams come across either way; but if you enter a current date, some stores may display that instead of the original, and your discography can end up out of order. Keep the original date and everything lines up with what the store already has. The codes you own stay yours. The one exception: codes your old distributor assigned under its own account, not yours. You may not be able to carry those, and new codes mean the history will not auto-match. So before you move, check who actually owns your ISRCs and UPCs. The safe move is to upload to LabelGrid first with the same identifiers, wait for delivery to go live, and only then take the catalog down from the old distributor, so your music is not offline during the switch.

So if the identifiers stay the same, where does the extra time go? Into the credits. Nearly all major stores now require full songwriter, composer, and performer credits along with publishing metadata. This is not an Apple-only rule, though Apple’s style guide is blunt about it: you must supply complete and accurate credits, no placeholders, with composition and lyricist roles at the track level. The platforms require this because they owe publishing and mechanical royalties, and complete, accurate credit and publishing metadata is how those royalties get matched to the right writers and publishers. Gaps in it delay or misroute the payment. An older catalog was often delivered before any of this was enforced, so it tends to carry gaps in exactly that data, and migrating it means finding and filling them.

In the United States, the Music Modernization Act, signed in October 2018, created a blanket mechanical license and stood up The Mechanical Licensing Collective to administer it. Per the U.S. Copyright Office, the MLC became operational on January 1, 2021. It matches recordings to the works and owners behind them using the metadata distributors deliver to stores: under The MLC’s own Data Programs, stores report usage and royalties, The MLC matches each recording to a registered work, and recordings it cannot match sit unpaid. The same logic plays out globally through collecting societies, which register musical works by their ISWC and match reported streaming usage to those works so songwriters and publishers get paid across borders. The delivery format that carries all of this, the contributors, the roles, and the ISWC, ISRC, and UPC together, is DDEX, the cross-store standard the platforms ingest.

The timing is what catches older catalogs. Credits only became visible to listeners fairly recently. Spotify began displaying songwriter and producer credits on February 2, 2018, drawn from label-supplied metadata. The move from visible to expected and thorough came later still: the UK’s Industry Agreement on Music Streaming Metadata, published May 31, 2023, set out good-practice standards under which songwriters capture their metadata as close as possible to the point of creation and performers capture theirs at the point of recording. A catalog delivered years before any of this predates those expectations, so it often carries missing or incorrect writer, performer, and publisher data. You keep the ISRCs and UPCs; what you rebuild is the credit layer underneath them, and that is where the time goes.

It is worth the effort, because incomplete metadata is not a cosmetic problem. The UK Intellectual Property Office put it plainly in an April 2025 post: incomplete or inaccurate metadata can lead to significant delays in creators being paid, and in some cases their not being paid at all, with registering original compositions a particular area of concern. The streams you migrate carry your history; the credits you complete are what makes sure the money attached to them reaches the right people.

Worth knowing: the data shows catalog re-submissions and fresh releases need fixes at almost exactly the same rate, so migrating a catalog is not inherently messier than releasing new music. It is the same review, with the credit work front-loaded.

Why this matters: getting matched, getting paid, getting found

Every issue here ties back to three outcomes: getting matched, getting paid, getting found. Start with the money. Complete, accurate metadata is what lets the collecting societies match your reported streams to the works behind them and route royalties to the right people, and on a migration the matching ISRCs and UPCs preserve your existing history at the same time. Clean audio and correct identifiers keep a release from bouncing at a store. Complete lyrics, a linked artist profile, and full credits help listeners and algorithms find the release once it is live. None of that is overhead. It is what sets a release up to earn and to be found.

Timing rewards the prepared, too. Spotify asks for roughly five business days to make a release live, and notes that delivering inside that window can push your launch back. The fixes in this guide take minutes; the lead time does not, so the artists who plan ahead are the ones who hit their release dates.

The pre-submit checklist

Almost every delayed release is held up by one item on this short list, and each one takes minutes to clear:

• Lyrics on every vocal track, or the track marked instrumental
• Writer, composer, and performer credits complete, with language tags set
• A true lossless master: no clipping, headroom intact, and no dead air at the start or end
• Artist profile and links complete
• Payment and tax details set up
• Square artwork at 3000×3000, JPEG or PNG, no text or URLs
• The right identifiers: carry over the ISRC and UPC you already own on a migration, or assign fresh ones for a brand-new recording or release
• Genre consistent across the release and its tracks
• A release date a few days in the future for a new release, or the original release date if you are migrating a back catalog

If you run a label and want this same pre-delivery check across every artist you manage, the overview for labels walks through how that works, and the distribution feature page covers how releases reach stores once they pass. You can see plans on the pricing page.

The five minutes that keep a release on schedule

Roughly 90% of releases on LabelGrid clear review on the first pass. That is not luck. It is what a pre-delivery check buys you. Run the checklist before you submit and the review becomes a formality, not a bottleneck. That is what release readiness means: not more work, just the right few minutes of it, up front.

Frequently Asked Questions

Getting Started

The fastest way to skip every delay above is to run the pre-submit checklist before you hit submit, then let the review catch anything you missed. Set up your payment and tax details once, keep a lossless master and square 3000×3000 artwork ready, and add lyrics and credits to every track as you build the release. On a migration, carry over the ISRCs and UPCs you already own so your streams come with you. You can prepare and submit your next release, and watch it move through review, from the LabelGrid dashboard at app.labelgrid.com.