AV1 doesnt play on some ips

[goerdi]

Hi !

It worked for some files but now i get a failure message with converting which i do not understand:
av1_metadata @ 0x615099474780] Codec 'mjpeg' (7) is not supported by the bitstream filter 'av1_metadata'. Supported codecs are: av1 (225)
[vost#0:7/copy @ 0x615099546880] Error initializing bitstream filter: av1_metadata
Error opening output file hdr10_video.mkv.
hdr10_video.mkv then is created with 0 bytes...

this file plays in Browser but not in with internal player..

Ciao Gerd