[alanmcorcoran]

FWIW, I weighed in on this issue, possibly years ago (I have the Samsung 900T 12") and I still occasionally have the problem - although it seems less frequently. I almost always have it when paging through a setlist, and I typically navigate to the setlist via the Setlist top menu option rather than via the "Recent Songs" listing of the setlist name. The colored navigation or jump points (overlays) display but no music. It *can* be resolved by advancing/retreating 3-4 pages. I was not aware of the portrait/landscape fix. It does not happen that often (I've played 4 hour gigs without an occurrence and gone weeks without an occurrence), but, when it does happen it can be jarring. I usually just try to soldier on while advancing and retreating the pages. I actually have more frequent issues with accidental page turns - but those tend to be easier to recover from. I have the latest Android release from Samsung and a pretty up to date if not completely up to date version of MobilesheetsPro. I usually have YouTube, a file transfer, settings and a handful of other stuff suspended in the background.