Problem began when testing the August update yesterday on a large data model. WebView is now kicking off and running through CPU and RAM usage while loading. Model would take only a few minutes to open previously and now took 39 minutes to open. Once open the Apply Changes was shown and each time would click....updating metadata...success...but remain. Trying to refresh the model would cause waiting for quieres...then a blink and close the refresh dialog box. Going to try and go back to July version and see if this fixes the issue but please let me know if this is going to be an expected occurance going forward with updates.
Even attempted to open a PBIT of the model and the computer froze. This is a system that can handle PBIX and PBIT files (256GB RAM, 4.4 CPU, terabytes of space, developer grade system.) Thank you for the help Microsoft team.