HDR videos not displayed properly (they launch in SDR with washed out colors and contrast)

[P40L0X]

Describe the bug When playing native HDR10 videos those will be actually reproduced in washed out colors/contrast and in SDR instead (both on Windows 11 with HDR enabled and HDR disabled but with HDR Video option enabled)

How To Reproduce Just play any HDR video files (.mp4 or .mkv)

Expected behavior I expect them to automatically trigger and be shown in native HDR10 (with proper HDR contrast & colors) if Windows 11 has system HDR: Off but "HDR Video" option: On or if the whole system is with HDR: On

Environment

• OS: Windows 11 on ARM (24H2) Build 26100.1150 (Public)
• Device: Lenovo Yoga Slim 7x (ARM64 - Snapdragon X Elite)
• App Version [e.g. v0.12.8 from Microsoft Store]

Additional context I don't know if this is due to ARM64 Windows and/or the app and codecs not fully native? Windows 11 "Movies & TV" app seems ARM64 native and does display HDR properly.