Problem with unity recorder, image sequence, accumulation

Unity version: 2021.3.1f1
Recorder version: 3.0.3
Alembic version: 2.3.0
Problem: when using recorder with 1-2 samples, final image result is kinda fine. But with samples > 2, my ABC and FBX files in the timeline got desynced, even with v-sync on. That means my FBX file sometime faster or slower 1 frame (exactly 1 frame) than ABC file

-This is the settings with 1-2 samples:


and result:
https://drive.google.com/file/d/10ypr1xl6FGMRF5xZAeOud9yuOg8XgUWr/view?usp=sharing

-This is the setting with more than 2 samples:


and result:
https://drive.google.com/file/d/14N5_rBzje5m7HOCPV0NjMTiqASAGL4Oc/view?usp=sharing

FYI my timeline fps is 25

Hey @avnphong3bao8 , thanks for the additional information! I tried to reproduce the issue in a simple project on my end but unfortunately wasn’t able to get the same result. My Alembic FBX animations stayed in sync during the recording but I might be missing a critical step.

Is there any chance you would be able to share your project with us? If it’s too big, a reduced version with only the scene/assets from your example video would be great. The best way would be to submit a bug through the editor which will also package your project (instructions here).