Sling player on all my Samsung devices (Galaxy Note tab 10.1, S4 phone, S5 phone, Tab S2) fails multiple times a session. Have reported multiple times. No change. Often when I restart app I get the message someone else is using slingbox. That of course would be me from my previous failed session. Have had paid version for years. Have also tried free version with same result. Also continually get this message on tablet - See attached photo.