I am having the same problem on my Samsung Note Edge (SM-N915F, Snapdragon CPU), Lollipop 5.0.1.
Since I upgraded to Lollipop I cannot use anymore the Player.
I am a Samsung guy and I have a number of devices around.
All updated to Lollipop.
My devices that have Exynos CPU work fine (S6 Edge SM-G925I and Note 4 SM-N910U).
The Note Edge (SM-N915F) it is Snapdragon and not working
At this point, Slingbox team , please try to check if there is something particular about Snapdragon and the problem!
Also, another issue is that on the phones running on Lollipop and SlingPlayer working, the streaming to ChromeCast is not working at all (tried on 2 phones and 3 tablets). On the screen of the TV appears the SlingPlayer application but the video is not starting