Lost video signal

Hello!

My devices is: LG oled C6 TV, Denon x2300amplifier, and Beelink minimx3 s905 with LE

1. Minimx --> Denon x2300 --> LG tv
Old builds (7.0.12, 8.0.0d) it is work perfect
New builds (7.0.13k, 8.0.1j) video signal is lost sometimes. I make video: Video

2. Minimx --> LG tv (without amplifier)
All build is work perfect.

I changed hdmi cabels, disabled CEC.

Logs

What is wrong, can u help me solve this bug?

I got a bit closer to the problem:

1. In old builds I used 4k gui. Gui and films (sd, 720p, 1080p, 4k) are good. I use now 8.0.0d, its perfect. But I woud like to use updates...

2. In new builds: (I tested: 7.0.12k, devel, 8.0.1j, i, 8.0.1 devel)
- gui is 4k, then gui and 4k films flashing (lost signal). I dont test more resolution, because I dont see snything.
- gui is 1080p, then gui is ok always. sd, 720p, 1080p films are ok, but 4k is flashing...

I tired the new devel build, but nothing changed.

I tried many versions. The last "good" version is 8.0.1a. The 8.0.1b and higher are "bad" and the screen blinking.