Hi,
Can you please post DAVx5 debug info? (DAVx5 / App settings / Debug info / Share)
I have sent you my debug info using the secure support form of www.davx5.com due to personal data within the debug information.
Hope this will help analyzing the issue. Many thanks in advance!
Completly deinstalled DAVx5 and OpenTask on my phone and did install both again. Then, it worked again. Problem solved 
Beware! I uninstalled DAVx5, reinstalled it, connected it back to NextCloud and all of my local tasks were deleted which were not already synced to NextCloud. Pretty annoying, I must say. I am also on Android 11.
Does this still happen with DAVx⁵ 3.3.6?
I don’t know. I am still on 3.3.5-gplay. Should I wait for the update to 3.3.6 before I fix the problem for other people?
@CaveDave We have added a possible workaround to 3.3.6, so it would be very interesting whether this really works around the problem or not. I’ll send the APK over email!
@rfc2822 My wife didn’t have the issue like I did for some reason. 
She has a Pixel 4 and I have a Pixel 2. I don’t know if that would have made a difference.
Just sent the APK. Android 11 introduced new “awesome” features – wohohohoo – like this package visibility, but it seems due to a bug in Android 11 the visbility of our declared providers gets lost after a few days. Now we changed it to the package names instead of the providers we want to see - hopefully this fixes the problem…
