When volume is missing

I have a script application on a Thumb Drive. I opened the script to edit in Script Debugger. Then with the script open and unsaved, I ejected and removed the thumb drive. Then I tried to save the script.

Nothing happened. SD behaved exactly the same way it would have if the drive was still mounted and the save was successful. I had no way of knowing that it didn’t save, except I realized the thumb drive wasn’t mounted.

–> Script Debugger 7.0.9 (7A94)
–> Mac OS 10.11.6

Will update to 7.0.10 tonight.