MSI MPG X570 Gaming Plus - RGB still don't work correctly

Hi! Thank you for this awesome piece of code! I hope that list of supported devices will grow. :) Anyway... I have a problem with my motherboard MSI MPG X570 Gaming Plus. I saw that @t-bond implement a support for MSI Mystic Light (USB Controller?), but unfortunately I tried to run OpenRGB and changing colors does nothing as I expect - all LEDs on motherboard goes to black (off?), sometimes "Gaming Plus" logo with LEDs animation are "buggy" or also black with no reaction for any settings. It's strange, because I think that @t-bond has the same MB like mine - and also Arch Linux.

Kernel: 5.6.3-arch1-1

[odziom@odziom-pc]: ~>$ lsusb
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 002: ID 1e7d:2e22 ROCCAT Kone XTD Mouse
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 003 Device 002: ID 1462:7c37 Micro Star International MYSTIC LIGHT 
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 046d:c342 Logitech, Inc. G512 SE
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Currently I have one strip RGB which is connected to JRGB2 port on my motherboard. Could you support in this problem?

Thanks in advance! Krzysztof