[Zubersoft]

Looks like this occurs on any device running Android 7 or lower (it may include 8 and lower, but I don't have a device running Android 8 to test on). The problem is actually caused by a popup window trying to display a spinner dropdown, which crashes on earlier Android OS versions. So I will have to switch the code on those devices to show a dialog instead (this is what occurs if you tap on the font dropdown after bringing up the font dropdown from the toolbar by tapping on the font icon twice). Thanks for letting me know about this.

Mike