[CLIENT] New Mobile App keeps my status Online/Mobile even after signing out

I decided to try out the new mobile app "League Friends" but I noticed that after doing so my status stays as Online or Mobile when other people see me on their friends list. I checked on my brother's client and it permanently says that I'm on the mobile app even if I close the app OR sign out completely from the App and from LoL client on my computer.

If I sign out of the App and from the Client I want to appear offline.