I've got the latest Logos Bible app and iOS 8.0 (not the .01 version).
Everything was proceeding apace in the english introductory text. Then I moved into the syriac text and it was fine too. But I proceeded into the middle of the syriac text, the gestures locked up (move forward/backward) and then the scroller on the bottom. Top and left menu panels were fine.
After re-booting the iPad, the syriac part locked up even further. The scroller however could shift to the introductory text (before) or the translation text (after). If I were guessing, I'd think the relation of gestures to 'backward' text but just guessing in iOS8. Could be a fluke in the resource.
Haven't had any issues with this resource in L5/Windows.