Scrollables within SlideViewer sometimes don't get touch events on Android

[crazy2be]

Not sure exactly what causes this, but it's fairly easy to reproduce:

1. Make a two-page SlideViewer where each page is scrollable (this happens with more pages as well, but I haven't figured out the exact pattern).
2. Ensure that the first scrollable page has enough content that it can scroll.
3. Observe that none of the content in the second scrollable can be interacted with. Although both the container and the scrollable region respond to touch events, none of the elements within the scrollable region seem to receive any touch events, either touchstart, touchmove, touchend, or any of the mouse-related events fired afterwards.
4. As a consequence of 3), links and buttons within the scrollable region no longer work.