Vouk DaVinci doesn't seem to crash any more, but I still get the "Codec is not opened yet" message every time (same error on the log files).
I've prepared a small project with a small test file, maybe that will help figure out things. All I did was create a project, load the project settings preset I normally use, and add a small test file to a timeline, nothing else. This file comes from the same camera/settings I use most of the time, and it's from the same session of recordings for the video I'm trying to export myself. I'm trying to export this with the scene I shared above, with YUV 4:4:4 (16 bit) type (because I have x265 configured to export YUV 4:2:0 10-bit, and the other types are all 8-bit).