I have the most up to date versions of the apps, my apps update automatically. The problem is that the autofill popup next to the credentials fields appear and disappear rapidly, thus I can't use the autofill option and I need to go to Enpass and copy-paste to the login fields. I'll have a look at autofill options and will report back.
Device: Nokia 7.1, Android OS: latest with July patch. Firefox: 79.0.5 (Build #2015758619), Enpass: 220.127.116.110
Addition: I tried to screencap the autofill options but screen capture is prohibited in the app. I'm using Android autofill service, other tick boxes are unchecked. I also can't screencap the issue since I can't screencap sub-second flickering of the autofill invoking box.