A render that fails, stalls or crawls
Render failures cluster around three things: the credit budget, a single pathological frame, and a connection drop mid pass. Check them in that order; the fix is usually splitting work rather than fighting it.
- Check the credit balance before anything else: renders draw on it
- If a render fails at the same point, the frame is the suspect: an effect or a codec
- Split the timeline around the heavy section and render in two passes
- Retry after a connection drop; the queue picks the job up again
