i did some checking i indeed dont get a new main log but only the 3 ffmpeg logs showing no error except that its exiting. on the other hand h264 seems to be transcoding propperly now.
movie that loaded fine
Video
Title: 1080p H264 HDR
Codec: H264
Codec tag: avc1
AVC: Yes
Profile: High
Level: 41
Resolution: 1920x804
Aspect ratio: 2.40:1
Interlaced: No
Framerate: 23.976025
Bitrate: 2249 kbps
Bit depth: 8 bit
Video range: HDR
Video range type: HDR10
Color space: bt2020nc
Color transfer: smpte2084
Color primaries: bt2020
Pixel format: yuv420p
Ref frames: 1
NAL: 4
movie that loaded fine
Video
Title: 1080p H264 HDR
Codec: H264
Codec tag: avc1
AVC: Yes
Profile: High
Level: 41
Resolution: 1920x804
Aspect ratio: 2.40:1
Interlaced: No
Framerate: 23.976025
Bitrate: 2249 kbps
Bit depth: 8 bit
Video range: HDR
Video range type: HDR10
Color space: bt2020nc
Color transfer: smpte2084
Color primaries: bt2020
Pixel format: yuv420p
Ref frames: 1
NAL: 4