I had the same issue. I'm running ArcGIS 10.3.1 with the Spatial Analyst extension.
I copied all files I needed to a local folder and built a new mxd. I also made new scratch and workspace gdbs and directed my ArcGIS environments to use these.
Seems to have all worked. Simple enough.
Thanks
Signed in members can post, follow updates, and more. New here? Register a free account.
Find useful guides, FAQs, and documents to help you navigate and make the most of Esri Community.