Not sure after which version/update but currently on my Samsung Galaxy S9+ when LoRa signal is received I only hear the acoustic notification and see message "TTN message received 1 seconds ago".
There is no dot appearing on the map next to my location (in signal strength corresponding color) and also no Gateway icon and no line connecting them..
Also I see no difference between LoRadrive mode enabled or disabled.
Since this is very basic functionality of this app and probably many others are using it in LoRadrive mode, I suspect that issue might be happening only on some devices or android versions..
Would be interesting to know how widespread is this issue and if others have it as well..