Didn't work for me. Still dropping to main menu after "Searching for Players". It loads to the moment when I can move camera around while everything is still blured. Then some text starting to appear at the center of the screen and right at this moment game drops to main menu.
Tried different things. Like moving the game, cleaning all Paralogue files in AppData folder, checking Permissions and Read only parameter, deleting certificate file and certificate with certmgr.msc, blocking outgoing connections from FallenDoll.exe and FallenDollLauncher.exe and Paralogue.exe to Public Network. Oh, and registering steam_api64.dll.