v2.18.0 initial black frame

[IoannisSyrogiannis]

Certainly and easily:
https://dpel.aswf.io/asc-stem2/
On "quicktimes", it's the fifth (not second, as I first wrote) (Quicktime with stereo, 2.39 @ 4K, 100 nits ProRes422HQ, Rec709, 4096x1716)

[StephW999]

ah indeed, I just noticed the same thing, the first image seems to come from another time code

[IoannisSyrogiannis]

I just checked 2.18.7 on the same project.
The first frame is the one that is supposed to be, according to the "trim up to current position" choice. Thank you, carl and everyone involved.
...wonder I do!