My bluetooth proxy went “offline” and it discovered a new one. No changes on my side. Anyone else?
There must have been a change. You updated it. What versions?
now it shows both online 
looks like something about an API key getting introduced has resulted in this state.
I think your the only one with issues… Maybe if you start treating your BT Proxy with a little kindness and be romantic, it wouldnt act out and do these things to you…
I too have that problem.
I installed this update on another proxy and since then it is offline.
The physical device, a M5Stack Atom lite, is getting very warm.
Revert to a previous version. If updates dont apply to your particular esp board, you know its perfectly fine to skip them, right?
The M5Stack Atom lite has its own packages to function as a Bluetooth Proxy.
If I then get an update notification, well that should be because that particular esp board has an update.