11-19-2017, 07:58 AM
Well I seem to have tracked down my particular problem and it wasn't the hard-drive space... however it did make me clean out some junk from the drive so that's actually a good thing!
It looks as though when I was adding some new mods, I added an older (and no longer compatible) mod to my WinData folder when I transferred the group I actually wanted (I tend to highlight all the mods I want and transfer them all at the same time - a habit I think I've just been cured of). I also have a tendency to keep all the mods, including older versions or ones that are no longer compatible, in the same storage folder but I think I'll be transferring the oldest ones into some sort of archive from now on.