It’s that old problem again. Nothing to do with the size of the file…
I get one or two of these per week. It happens more often when there a many files open, and usually when the app has been open for many hours, maybe days.
@Loan_Tran requested me to send in the files - frankly that’s pointless.
One thing I know for sure, it has NEVER happened to the primary editor window. Which is the primary window? The one with - it only ever happens to the other windows/tabs.