We fixed retrying a failed video. Two separate problems were stopping it from working.
On most failed videos the "Try again" button never appeared at all, so there was no way to start another attempt. Where the button did appear, pressing it ended in the same failure almost immediately — the video remembered that it had failed before, and that memory cut the new attempt short before it reached the generator.
Both are resolved. The button now shows on failed videos, and pressing it starts a real new attempt. Videos that fail for a temporary reason — a busy or briefly unavailable generator — are also retried automatically now, up to the limit for that kind of problem, rather than stopping after the first failure.
Failures that cannot succeed on a second attempt, such as a prompt rejected by the generator's content rules, still stop straight away. Credits are not consumed by failed attempts.