EA Anti-Cheat will not start/run preventing WRC to load.

same issue here

the only solution I found was to move the game installation directory on the C:\ system disk.

Therefore this is an issue with access rights of the EAAntiCheat windows Service when the game is installed on another disk.

I'm not a windows's file system specialist, but for them, it would be cool to explain what's the basic reason (I understand it might not be solvable on EA's side though)