The beta seems to work for me. Downloaded v6.3.2 (599) it prompted me to update to v6.3.2(601). After update to v6.3.2(601) I selected TouchId in prefs and it seems to be working. TouchId setting is still persisted after an app restart. So far so good.
I can install Enpass again. All I did was:
1: open C:\Users\<USER>\AppData\Local\Packages\
2. search for Enpass
3. delete Enpass package folder
4. install again