Feedback for v2.6.3

    Vendor Name: OnePlus
    Device name: Nord
    Device CodeName: avicii
    Version of /e/OS or Stock which existed previously: 2.4.1-s
    Is the device Rooted / Not rooted: not rooted

Since I was on 2.4.1-s I manually update to 2.6.3-t via sideloading which went totally wrong in the first place but now the system is running again. See here.

The only thing that is not working is WIFI.
In cannot enable it and it does not discover any networks. When I click the button, it stays enabled for a few seconds and then automatically becomes disabled again.
What can I do?