I am facing the same issue since the last update.
I recognized, when I pause any app, I see a ghost popup. Its very transparent and because of the flickering very hard to see, sometimes almost not visible. But what I can read is "permanent har…
To be more precise, even if the quest shows the developer and unknown sources tab, it could be that the companion app turned off dev mode :(
Okay turns out there was some miss match. Both quests showed that the developer mode is active but when I went to the phone app it was turned off.
Turned it on again, seems to work.
But why would this happen and even with both devices in the same ti…