What's going on here? File failed to save: error 1000

I’m unable to save any files from Wolfram Desktop without getting the following error… any idea what’s going on?

File failed to save: error 1000

Same problem here. Suggest newbe reference?

I reported it on up. Over a weekend, response might not be quick.

I got this same error today.

I think the problem is there is a colon : in the name of the file so I can’t save it.