Campaigns disappeared yesterday!!!!!
 

(This may be OT here so please move if necessary)
Yesterday I noticed all campaigns ( mostly from here,) but default disappeared for game play...completely,except for the single mission variety .Its easy enough to reload them , but still I wonder what happened? I'm not using Cloud at all, so that didn't do it .I did notice a smallish auto-download from Steam yesterday, like everyone else , but I can't imagine that had anything to do with it...do the best and the brightest at this site have any ideas?

the campaign.ini file was replaced with the original one. That's the only possible explanation.