[BUG] LOGO Invalid, not appearing

[ropdwr]

Both logos I posted display fine her ein Avisynth and Vapoursynth.
I would need and example logo that fails for you and a debug output to know what's going wrong.

Cu Selur

version is 2020.10.11.1.

I changed many logos again, the result is the same, now Vaporsynth is used correctly,
Avisynth cannot be used, and the debug output is the same as before.

I really don't understand，

thank you