Nintendo Pro Controller stops working with Redream

[DeFarro]

Pi Model : 4B
Power Supply used: Raspberry
RetroPie Version Used: 4.6
Built From: pre made SD Image on RetroPie website
USB Devices connected: none
Controller used: Nintendo Switch Pro

Hello! I've got really weird one - tried to google it for 3 days but no luck.
When I'm trying to load any save states in Redream (several games tested) my Pro Controller stops working and blue light (around home button) turning on and keeps being lit even when I shutdown the Pi via ssh (as soon as controller not working).
All other emulators work fine (NES, SNES, GBA, N54, Amiga, PSX, PSP, Atari, Saturn).

Only 2 things might been changed recently:

1. Nintendo Switch update (I don't know if it updated controller firmware too)
2. I've installed Steamlink on my Pi recently and it works quite fine. Googled that this blue light on Pro Controller indicates connection to Steam. But I'm not starting Steamlink in EmulationStation and checked processes on Pi - steamlink is not running. However I've noticed that many more packages were installed together with Steamlink app so maybe. When I uninstall Steamlink the issue with Redream is still happens.

Have you ever heard of something like this? Where should I dig? What logs to monitor?

Thank you in advance!

[DeFarro]

Update:

If I'm not loading the save state game and just run the game it fails to start and moves me back to EmulationStation list of Dreamcast games with controls not working.

Here is the log from /dev/shm/runcommand.log

[ERROR]         emu_read_server_msg unknown cmd=0x1e4baa8
[ERROR]         [/builds/inolen/redream-private/src/guest/memory.c:853] Check failed: res