can't use external player on android TV?

[emoxam 0]

server "emby Version 4.10.0.40" via docker on "Kubuntu 26.04 LTS"

Client - "LG TV LG 32LN613V LED" with android stick "realme 4K Smart Google TV Stick"

both "Emby for Android TV" version 2.1.55g (tv.emby.ambyatv)
and "Emby for Android" version 3.5.55 (com.mb.android)
(separate thanks to similar names for both app!)
I checked "use external player"
when i try to open any video it tries to open VLC but quickly closes VLC window. And it seems that episode is finished and then it tries to play next and again and again..

How to use external player? I've got on installed VLC, Vimu..

Logs from emby server

embyserver.txt hardware_detection-63924713369.txt