I used to use the windows debugging tools. Set it up once on your workstation, use the MS symbols , then !analyze -v (if I remember correctly) on the .dmp file should spit out the offender.

Here's the current suggestion from Seagull Support in addition to sending Bartender message logs, Bartender print job logs, and system / application logs on the server:

I would like to try making a change to Commander, I would like to change when Bartender restarts the process. Please follow the steps below
1: Open Commander and stop detection
2: Click on Detection Command Handler Setup
3: On the General tab in the Restart Process dropdown select "Every Command"
4: Start detection.