Why Doesn't Adobe Software Resume Rendering from Where It Fails?

Report · Nov 28, 2024

Hello everyone,

I've been running into an issue with Adobe [Premiere Pro/Media Encoder/etc.] where rendering fails partway through, and instead of resuming from the point of failure, it forces me to start the rendering process from the beginning. This has been quite frustrating, especially for longer projects.

I’m curious if anyone else has encountered this and knows why Adobe doesn’t support resuming rendering from where it fails. Is there a specific reason behind this behavior? Is it related to how the rendering process works, hardware limitations, or something else?

Also, if you have any tips or workarounds to avoid this issue, I’d love to hear them!

Looking forward to your insights.

Best Regards
MaahiDevendra

Report · Dec 01, 2024

The After Effects Render Queue will queue up failed renders to continue from where they left off, but not all file formats allow for continuing a render. For the file formats that allow for it, it would be great to have having something similar in Premiere Pro and Media Encoder to quickly continue an export.

Image Sequences allow for doing so because each frame is an independent file. Mezzanine formats (like ProRes) have a good chance of doing so as the first segment can be quickly appended to the second segment later. Long-GOP formats (MPEG2, h264, h265) that are multiplexed do not allow for this as they have to be rendered from Media Start to Media End with a consistent GOP structure.

Even when Image Sequences and mezzanine formats fail with the After Effects Render Queue, we need to check the most recent frame at the time of failure. For example, if rendering 900 frames and it fails at fame 450, After Effects will queue up the failed render to continue from 450; however, frame 449 may not have completed as expected and we may need to adjust the continuation to render from 449 instead of 450.