hey all,
Since updating to pyRevit 4.8.16, I have seen that if you have 2 Revit instances and close 1 instance, the other instance automatically gets closed, which is undesired.
Has anybody else seen this happen?
Let me know 
Never seen that one.
Have you tried deactivating all Revit addins and turned them on one at a time and starting Revit every time to pin down what is causing trouble