'Screen overlay detected' error dialog wrongly appears

1. The 'Screen overlay detected' dialog prevents me from sending any kind of text. It claims I have multiple apps, however all of the apps listed do not have permissions.

2. After clicking 'continue', sending the message again will again show 'Screen overlay detected'

3. The behaviour in 2. can be circumvent by clicking by shutting down the screen and activating it again.

Phone: HTCm8 Android version: 6.0

Suggestions:

Maybe you are only checking if the apps request the permission and not if they actually have it?

https://code.briarproject.org/akwizgran/briar/blob/master/briar-android/src/main/java/org/briarproject/briar/android/ScreenFilterMonitorImpl.java#L105

Thank you for your work