bug: (?) Freeze after Export Format

[delcampo-slb]

Engauge Digitizer seems to reliably freeze when I do the following actions:

1. Open the app
2. Drag-and-drop a PNG image (which initiates the Checklist Guide Wizard)
3. Click Next
4. Leave default Curve1 as the only name
5. Select either "With lines" or "With point only" (seems independent of this choice)
6. Click Finish at the "Conclusion" dialog
7. Create three axis points (tried with origin of 0,0 and 1,1 to exclude effect of zeroes)
8. Select Settings -> Export Format

This is the simplest test I can do to reproduce the issue (I've been able to reproduce at least 5 times with slightly different options). Worth noting that previously I had already set up Export Format, but now it seems that I can't modify those settings. I'm not sure where my settings are stored, but if I don't touch Export Format, I can still export to a CSV. It may be possible that something I chose in my Export settings is interacting badly with the app to cause this issue.

Using MS Windows 10 Enterprise, 10.0.19042, 64-bit.