@Bignoob Ah ok. I see part of the issue. Just as a general rule please don’t overlap sounds on the same layer Always create a new layer for each sound that needs to be overlapped on the same frame range.
Since Pencil2D does not have crossfading or fancy stuff like that, but even if you were using a pro video editing program, you musn’t ut one sound on top of the other on the same track.
By the way when i say overlapped i mean this (note 1 and 2)
I removed all the overlapping sounds and deleted the “laser” track and i managed to export without problem. Probably the laser track had one file at some point that got damaged and without being deleted it keeps referencing that. We’ll see what the devs can find with more specialized tools.
Create two new sound tracks, one for the sounds that are overlapped and another one to replace the “laser” track. That should do it.