[alanmcorcoran]

Hi,
I too have the intermittent black page problem.  Fortunately, I am neither as disciplined or as accomplished as Steinway, so it is more of an annoyance than a dealbreaker.
I am on a Samsung SM-T900
Android is 5.1.1
Mobilesheets Pro is 1.5.4
Pedal: Pageflip Firefly

I have noticed it almost exclusively when using the pedal, but I think it's fair to say it's not related to the page turning method as, once it happens, I have used my fingers to flip the pages around.  I've not done a careful experiment with going forward x # of pages, but, generally speaking, I've mainly had the problem with setlists and to fix it I've reloaded the setlist.  Some other observations: the link dots do appear.  I don't have many annotations so, haven't seen those.  I don't usually crop or zoom anymore, but I may have in the past.
I typically have a dozen other suspended programs "in the background".  I rarely restart the tablet.

I typically use MSP at least one hour a day when I am working at my "real" (paying job) and 2-4 hours on weekends and when I'm off (I am not a full-time musician) I noticed the black page problem relatively recently, maybe couple of months ago.  Was a little concerned about wedding gig but, thought if I loaded setlist and flipped through from front to back I'd be okay.  (Now, I'm not sure that is the case.)  What I think is safer is to flip through each song prior to starting.  It is very intermittent, I would say, rare, but it definitely happens, sometimes on two consecutive days.  If I spot anything else about it I'll let you know.  If there is something I should look for, let me know.