So a while ago they released a update on Steam that was suppose to fix the RCE vulnerabilities and it also ended up removing the permanent double xp event on that version of the game. Many people (including myself) got really upset, but part of me was hoping this was some sort of unintentional thing as the 2XP was still on for the other platforms.
I'm not sure when this had happened, but I've just found out that the 2XP has been turned back on (At least in Zombies, I don't know about multiplayer though)!
Hopefully this is a permanent thing because the grind became slow when they turned it off🙏