Increased CTD's past 24 hours?

Never had any of these issues, but I wonder if its to do with scenery being cached from the internet? I’m on a PC and have a 250GB cache drive defined, but given some of the other posts I’ve read, it could be that the servers providing the scenery aren’t working properly and causing these crashes (in effect the sim is flying to fly to an area that it can’t get the scenery for?