h.265 mp4 renders fail, other formats work. whats going on?

Cleo Ivanova · 2026-09-04T03:10:30.721Z

render job failed... again... my video editor, expotring to H.265 MP4, fails at 98%: [code] playback in the timeline works fine. i dont understand why export doesnt. any debugging tips? Ive exported many projects without issues before. This is the first time it fails like this 🤷 Im hoping someone can tell me how to find whats actually breaking xD i can share render settings or logs if that helps.

Solvedexport render video-editing4 replies · 197 views · started last mo.

Accepted solution by Sara — lol same thing happened to me if the problem clip is a phone recording or screen cpature with variable frame rate, transcode it to a…

Cleo Ivanova
@cleo_regex
23 rep · 3 posts
last mo.
render job failed... again... my video editor, expotring to H.265 MP4, fails at 98%:
```
Render Queue
Job 1  -  Trailer_v3   H.264  |  3840x2160  |  23.976 fps   Completed
Job 2  -  Wedding_Final   H.265  |  3840x2160  |  25 fps  |  stopped at 01:12:44:08   Failed
Job 3  -  Wedding_Social_9x16   H.264  |  1080x1920  |  25 fps   Waiting
```
playback in the timeline works fine. i dont understand why export doesnt. any debugging tips?

Ive exported many projects without issues before. This is the first time it fails like this 🤷 Im hoping someone can tell me how to find whats actually breaking xD i can share render settings or logs if that helps.
12
Quinn Petrov
@quinnp323
102 rep · 12 posts
last mo.
oh ive been there lol clear teh render cache: in Resolve, Playback > Delete Render Cache > All. Corrupted cache files can break exports even if playback looks fine.

if u prefer video, this one is solid:

▶ How to Fix "Render Job Failed" Error in DaVinci Resolve

2 2 helpful
Sara
@sara.duarte
212 rep · 17 posts
last mo. Accepted solution
lol same thing happened to me if the problem clip is a phone recording or screen cpature with variable frame rate, transcode it to a constant frame rate intermediate like ProRes or DNxHR first, then relink.

0 3 helpful
Aiden K.
@aidenk503
30 rep · 8 posts
last mo.
i'd avoid reinstalling the app as a first step, it rarely fixes redner failures and takes a lot of time.

1 0 helpful
Cleo Ivanova
@cleo_regex
23 rep · 3 posts
last mo.in reply to @sara.duarte
@sara.duarte yesss transcoded the phone clip to a constant frame rate and the redner finished. Sent the project to the client on time. Thank u! u guys are the best!!!

1 0 helpful

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