I've been working in MAT for 1.5 hours across two measures - this occurred in CMS1242 at 6:10am CT working in Chrome.

I clicked save in the CQL Library Editor and the editor appeared blank and asked if I wanted to save my changes. I clicked 'Cancel' because I didn't want to blank out my entire measure and lose all my work.  I got a message re: 'change to CQL file successfully made'. Then there was info in the Editor field, but definitions had a count of zero. 

Then the Editor went blank but the Definition tab still showed 62 definitions. 

Now there are zero definitions. 

Please help trouble shoot and recover all work.

cc: Amarsh nvoll