Have been playing Vermintide 2 all month.
This evening, game will open up the launcher, but not launch the game. First message is titled “Fatal Error”, saying I need to have steam client open to play the game, which I have running.
After closing that window, and Easy Anti Cheat pops up, saying
"Untrusted system file (D:\steam\steamclient64.dll)
Tried verifying game files, said one was missing and downloaded, but error persists. Deleted certificates and ran Anti-cheat Repairer, but to no avail.