I'm having an issue with Fredo plugins too, although not entirely the same (although perhaps it's related). I was prompted to update Fredo Lib yesterday (I'd not used sketchup for a few weeks). All seemed to work, then this morning I get a message saying Sketchucation plugin is out of date (even though it's not - it's the latest version) and none of the Fredo plugins that need a licence will work. I have paid licences for all Fredo plugins, but none of the paid ones now work because they're all demanding the latest Sketchucation plugin, even though that is installed. Is this related or a seperate issue?