I opened a file that I have been working on for an extended period of time and found that all of my measures are gone. They were there on Friday, nothing was modified in the file, and on Tuesday (9/3) I opened the file and they were all gone.
I had a similar issue last week where I opened a file and everything in the file was gone, tables, measures, etc. Closing and reopening was able to fix that issue. But that has not worked for my current issue of my disappearing measures.