Greetings,
I'm using it on my Z390. Have 2 actually and both are working just fine. I've been backwards and forwards through every setting and zone. After I installed it initially and started to play with it, I had the lights going nuts and my Dad was like you aren't going to leave my machine like that are you?
So I had to back track to get all of the settings calmed down again.
I use Gigabyte RGB for the board and a EVGA Utility for the GPU. It has a greater degree of flexibility since the Gigabyte RGB only works with supported Gigabyte cards.
Only issue for me is my RAM will not go dark when the system sleeps. There is a setting for this in BIOS, but It doesn't work in F10 or F11, only off or on 100% of the time. Its a known issue and frankly not something I wanted to pursue.
As of 6/17/2020 B20.0529.1 is the must current version available.
Have you reviewed System Event Viewer? Do errors for the event appear?
What are the steps you do to reproduce the crash exactly?
Have you considered opening a ticket with support?