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Processing takes too long

Learn how to tell a slow dub that's still processing from one that's actually stuck, what the normal Dubbing and Lip Sync times are, and when to contact support.

Most dubs finish without you having to think about them. Sometimes the status panel sits on the same phase for a while and it's hard to tell whether it's still working. This article helps you tell slow (still working, just patient) from stuck (a real failure) — and what to do in each case. For what's normal, see How long does it take to dub a video?.

First, know what's normal

A dub has two time-intensive phases: Dubbing usually takes about 2× your video length, and — if enabled — Lip Sync runs afterwards and usually takes about 4× your video length (a 10-minute video ≈ 20 min to dub, ≈ 40 min for Lip Sync). These are rough guidelines, not guarantees — there's no countdown in the app, so watch the live status. Lip Sync shows no intermediate progress, so it often looks stuck when it isn't.

Is it slow, or actually stuck?

Open the dub and watch the status panel. Judge by the signal, not by a stopwatch — there is no fixed "it's been X minutes, so it's stuck" rule.

It's still working (just slow) if the phase keeps changing, even slowly, and you see no error signal. Long videos, Lip Sync, many languages, multiple speakers, and busy periods all add legitimate time.

It's actually stuck only if you see one of these:

  • "Processing… takes longer than expected" — or, after edits, "Updating… takes longer than expected." Despite the wording, this is not a slow dub: it means an internal error that only our team can fix. → Contact support.

  • A red Input Error / Error badge → a problem with your source file that you can fix yourself — see Input error.

  • "Lip Sync failed" on the Lip-Sync card → the dubbed audio is fine; only the lip movements failed — see Lip-sync error.

If you don't see one of those, the dub isn't stuck — it's still processing.

Does reloading help?

Reloading the page only helps if the status looks frozen but is really in a normal phase (the view can be stale). It does not fix any of the three signals above — for those, reloading changes nothing.

What to do

If it's still working:

  • Let it run — phase changes mean it's alive.

  • Don't start a duplicate of the same content; it won't finish faster and it spends your minutes again.

  • For Lip Sync, give it time — at ≈ 4× video length it can run a while with no visible progress.

If you see "Processing… / Updating… takes longer than expected":

  • This is an internal error; it won't recover on its own, and there's no retry button for you.

  • Don't delete the dub — we need it to investigate.

  • Ask Dubby in the chat (bottom right) with the dub link and the phase shown on the tile. Our team will look into it and re-run it if needed. If it failed on our side, we'll restore the credits.

How to avoid it

  • Keep your source a clean, standard MP4 or MOV.

  • Turn off Lip Sync when you don't need it — it's the longest phase.

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