Looks like, some sort of bug with the “adaptive HLS streams decoding”.
Sending the bug report to Xiaomi support is a good starting point.
The more poeople will send report, the sooner Xiaomi fix the issue.
Also on my xiaomi mi box the app crashes after loading the Channels.
Ive tried Every decode setting that was hard cause i cant edit settings while initial boot up.
Ive also upgraded to oreo sinds then i van only whatch the firdt minute