Hi Jernej! I have formatted the SD card and installed fresh LibreELEC-H3.arm-10.0-nightly-20210412-142b163-orangepi-plus2e.img and latest PVR Simple client v.7.6.0.1 from repo as you suggested. Even though the performance (menu navigating) became even better, the bug still persists. 😢
Again I can replicate it easily. I have to start playing any HD orig channel and then turn on GUI menu and start navigating in it fast (while the channel's video playback is at the background). The best way to cause this issue is to just start scrolling the channels list up, or down.
First it cause's video playback image corruption (see attachment) then, when I stop the channel and then I turn on any HD (even not orig) channel the video playback would lag. Only reboot would restore playback to normal.
What do you mean without compression? I can't imagine uncompressed full HD - bitrate would be enormous.
I have chatted with my IPTV provider support and they say these HD orig channels are really without compression. If you need minimum 3-5 Mbits connection for usual HD (25-30 FPS) and FHD (50 FPS) channels, for HD orig you need about 20-30 Mbits. I have stable 51 Mbits connection. May I send you a generated link again with pastekodi after I have reinstalled the Kodi? Perhaps, you can find there new key for solution? Or maybe I have to try how it works from eMMC? But I remember my board worked worse on eMMC, rather then from SD card...
Many thanks for your support!