When I am playing on PS4, the android app works great. When I am on my PC I can only get the bounties but the fireteam invites never go through. I am stuck with joining manually and praying the recipient has invites turned on to public (which is rare). I did many cache and data reset, it didnt help. I have logged out and back in using my steam account and/or my psn account to no avail. Edit: I forgot to mention that on I can create a fireteam and invite. It works.