Looking at the comments.. detect is a chronic problem. but still hasn't been fix
It's a problem because people are chronically not following directions. You cannot just install the APK and go. The mods are tired of helping people who cannot read simple instructions.
I'm using this on Android 10 on a Pixel 4 without problems. I also have it installed on LD Player emulator without a problem. Follow the instructions, put your blackmod license file where it says to place it, and it does not get detected.
The only problem I have is this mod pushes your Attack and AP too high. I have to remove all my gear so it doesn't go too high and end up as "0 ATK" and "0 AP". The game must have a safety check that zeroes out stats if they are too high.