Got this Webviev error today


Today I got an error in the webviewer in the offline version.
Can anybody tell met what this means:


In the usb testing it shows the normal website and when I create the APK it show the message above.


This seems to be due to recent upgrade of Android 9


is there going to be a solution soon?


I have the same problem on my Android 9 device. (Android 7-8 works fine)
I read about this problem in this topic: (maybe the solution is in there too)
Maybe the solution is there?