[BUG] Problem with Hybrid_dev_2026.02.28-13831

[Selur]

When switching versions make sure to uninstall the old version completly.

Also I tried Vapoursynth, and when clicking preview I get "REMOVING RVRT" - the preview window now opens, but it is grey.

Strange, there is only:

sendMessage(HCONSOLE, FOURSPACE + "REMOVING RVRT" );

That is some debug output I forgot to remove which shouldn't cause issues. (and only should be annoying => looking into it => Hybrid_dev_2026.02.28-181813 should be up in a few minutes)

AV1 is only allowed as raw or inside a mkv, mp4 or webm container!

As far as I know, this is correct. mov does not support av1.

The procedure entry point_CxxFrameHandler4 could not be located in the dynamic link library C:\Program Files\Hybrid\64bit\Avisynth\avisynthPlugins\d3d9.dll

No clue, might be some missing dependency.
Can you check the dll using DependencyWalker?

Cu Selur