Hi, Just noticed on Debian that 17.12.3 has broken sub-clip support which used to work in 17.12.1 and earlier. Some sub clips don't play on timeline while they play correctly project bin. They don't play as in the preview freezes to last frame of previous clip. Can't reproduce with generated counter clip or simple mp4 file in a test project but on a real on several clips with sub clips are broken like this on timeline.
-Mikko
