MKV stops playing (Dolby Vision with high bitrate)

Hello, on my z9x (Firmware 6.4.06) all MKVs with Dolby Vision and high bitrate stopping playback after a few minutes, the same Video as BD-ISO plays very well
Are there any solutions?

Greetings
Piper2603

 

Post a MediaInfo report on the file to throw some light on it.

 

ok, here we are

 

P.S.: it doesn't matter if I play it through SMB or direct USB, the MKV stops after a few minutes (first freezes then back to HT) and the same video as BD-ISO plays fine


Update: I think I find myself a solution, after ripping with MakeMKV use MKVToolnix and use "Fix bitstream timing info" at the VideoTap