Android Emulator "Allow USB Debugging" dialog close right after showing

Question

I'm trying to debug with Android R in Pixel emulated devices w/ PlayServices but the "Allow USB Debugging" dialog instantly close right after showing, so I can't click in "Allow" to AS connect to the AVD. I went to Developer options in Android to switch off and on again the USB debugging, but again the dialog close imediatelly right after showing. I tried kill/star ADB and unistalling all AS/user configs/etc and reinstalling again but didn't solve. Anyone has a clue?

Answer 1

Seems like this issue is related to your emulator's API version, after some testing I found that Pixel 4 API 30 have your problem, while others don't.

Another odd thing about the box is that it will ask you again for permission when you start a new session, even though I clicked the "always allow this device" button.

Answer 2

Wipe data and it will pop up and stay. Check the "always allow debugging on this device" box and you should be good to go.