Error during Open By Id prevents Morpho from responding to input
Here is the scenario (and I believe it has to do with window management):
1. File->open by id...
2. select "Network" radio
3. enter an invalid PID
4. hit OK
5. You'll see an error about how that pid is not found etc. Dismiss it
6. Cancel out of the Open by Id dialog.
Now your mouse input is ignored in the entire Morpho frame (there is a custom GlassPane blocking all input because Morpho still thinks the frame is deactivated.
I saw this a long time ago when I was working with FIRST and I thought I had fixed it.