Processing takes too long
Most dubs finish without you having to think about them. But sometimes processing drags on, or the status panel sits on the same phase for hours. This article helps you tell the difference between slow (still working, just patient) and stuck (not progressing at all) — and what to do in each case. For a baseline of how long a dub should take, see How long does it take to dub a video?.
First, refresh the page
The status panel doesn't always update in real time. Refresh once before you assume anything is wrong — what looks frozen is often just a stale view.
Slow vs. stuck: how to tell
Open the dub and watch the status panel for a few minutes.
Phase is changing — even slowly. The dub is alive. It might be slow, but it's working. Skip to Slow but still progressing below.
Phase has been the same for hours. The dub may be stuck. Skip to Stuck in one phase below.
As a rough threshold:
Less than 1 hour in the same phase — almost certainly still working. Long phases are normal on long videos.
1–6 hours in the same phase — possibly slow but legitimate, especially with Lip-Sync on a long video.
More than 24 hours in the same phase — almost certainly stuck. Contact support.
Slow but still progressing
If the phase keeps changing, the dub is working — it's just taking a while.
Things that legitimately slow a dub down
Long source videos. A 30-minute video has many more segments than a 5-minute one, so it takes proportionally longer.
Lip-Sync enabled. Lip-Sync runs after the audio is rendered and adds significant extra time. Turn it off when you don't need it.
Many target languages. Each language is processed independently — translation, voice generation, and rendering all run per language.
Multiple speakers. Each unique voice has to be cloned and rendered separately.
High demand on the platform. During peak hours your dub may queue behind others.
What you can do
Wait it out. Phase changes mean the dub is alive.
Don't start a duplicate. Two dubs of the same content compete for the same resources and won't finish faster.
Don't refresh repeatedly. The work happens on our side, not in your browser.
For very long videos, consider splitting into shorter pieces and dubbing them separately.
Stuck in one phase
If the status panel shows the same phase for hours and a refresh doesn't help, the dub may be stuck. This is rare — most dubs either succeed or fail outright — but it does happen.
What to try first
Wait longer if Lip-Sync is the phase. Lip-Sync on a long video can take several hours and gives no intermediate progress, so it often looks stuck when it isn't.
Don't delete the dub. We need it to investigate.
Don't start a duplicate of the same content — and as above, it won't finish any faster.
What to send to support
Once you've passed the thresholds above:
Note which phase the dub is stuck in (the exact label from the status panel).
Note how long it's been stuck.
Contact support with the dub URL and the two notes above.
We can usually nudge a stuck dub back into motion or tell you whether it has to be restarted from scratch.
How to avoid this in the future
Keep videos under a reasonable length. Very long videos hit more edge cases.
Make sure your source is a clean, standard MP4 or MOV before uploading.
Turn off Lip-Sync if you don't need it — it's the most common phase to stall in.