Hello and thank you for your answer. I thought I messed up something with my wine prefix or dependencies and in game server browser stopped working because of it!
Yes I am using Lutris
I created a wine prefix by using lutris and used lutris Renegade X installer as reference and just copied Renegade X main directory to it from my windows drive.
Enabled ESYNC and installed and activated d9vk. version 0.13f by using instructions I found on internet.
I played the game just fine, performance was excellent. However i never managed to get launcher to work and I always used in game server browser to connect.
After I installed dotnet452 using winetricks, I always get errors messages when launching UDK.exe (I always use 64bit one) , the game launches anyway and runs fine afterwards if I ignore them.
If I don't install dotnet452 the game launches without any error messages. ( So i presume the dotnet is only needed for the launcher)
My distro is Linux Mint 19.2 XFCE
winehq-stable is installed on my system version 4.0 (Also tried winehq-staging and didn't notice any difference).
I can post my lutris Renegade X configuration when I get home.
And yes some temporary fix would be nice
Cheers!