Hello! Thank you very much for buying the game, I send a huge hug to Italy from Spain.
Regarding bugs, I'm afraid I don't know much about game controls on Android. Can you tell me which control you are having trouble with?
Sorry, but I don't understand what you mean by radar, I've tried the game and I haven't found any bugs like the one you describe. Can you give me more information please? At what exact point in the game does it happen? What is the name of the object? What exactly happens when you use it? Do you use it from your inventory or from the map?
Regarding the other bug you mentioned, the bug where you teleport to a strange place, I have already fixed it, thank you very much for reporting it!