Greetings All,
I'm running macOS Big Sur 11.1 (had this problem when I was running Big Sur 11.0.1 also). Have been running the Apple Store version of EnPass, currently 6.6.0 (772). I started using EnPass last month and really love it, just have an annoying issue.
I operate on my macbook pro with two external displays. If I open Enpass on one screen and try to move it to another screen, the window goes 100% transparent and I can't seem to see anything. I have attached a screenshot. If I close Enpass and reopen it, the application will display properly on the other monitor.