After installing 8.1, I immediately began having problems. A tab disappearing, some locking, and finally today, a crash when trying to save a trigger externally. I would attach the .dmp file, but that type of file is not permitted.
Could you please zip the dump file and post again? We have one more crash report and we have identified the issue. Once we get the dump file, we will give you an internal build to confirm whether you are facing the same issue.
Is this bug reproducible consistently? If yes, could you mention the steps to reproduce?