Suck in validation loop

[lauren-16470223]

I click "validate LookML", get the spinning icon that looks like its validating errors, then it quickly stops stops and says "Errors out of date. Click the test button to validate your most recently saved LookML.” So I click validate again and again get “Errors out of date”.

I'm in a loop. I logged out and back in, I hard reset my browser, I used both Firefox and Chrome, I tried on two different branches, I tried turning on legacy runtime, no dice.

Advice?