I've got something that was initially had a video.mp4 file, and I ran it through ffmpeg to make it a VP8 webm named video.webm (which plays fine in mpv) and it just shows up black in YARG. (I deleted the original mp4 and rescanned the song folder in YARG.) Same thing for another track that has a background.jpeg file.
I'm on b3279 nightly using Vulkan on an X11 Plasma session on Arch Linux. MediaInfo output for the transcoded video is as follows (some removed b/c Discord limits:)
General
Format : WebM
Format version : Version 4
File size : 13.8 MiB
Duration : 2 min 57 s
Overall bit rate : 653 kb/s
Frame rate : 24.000 FPS
Video
ID : 1
Format : VP8
Codec ID : V_VP8
Duration : 2 min 57 s
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 24.000 FPS
Writing library : Lavc62.11.100 libvpx
Default : Yes
Audio
ID : 2
Format : Opus
Codec ID : A_OPUS
Duration : 2 min 57 s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Bit depth : 32 bits
Compression mode : Lossy
Writing library : Lavc62.11.100 libopus
Default : Yes
Any ideas? Thanks in advance! 😄