We are using InDesign CS6 (for reasons), installed via Adobe Creative Cloud, installed on Mac OSX 10.13 and 10.14 Macs. Users are encountering frequent crashes. I believe the crashes are caused by incompatibility between InDesign CS6 and 10.13 / 10.14 . But, I can't yet DEFINITIVELY prove this. I believe a transition from CS6 to CC 2017 or later is needed. Can someone please provide the undeniable proof of this for me, or suggest a fix? All machines have the same fonts, are the same hardware, on the same network, etc.