The list will freeze and all app functionality will stop working after swiping the list rapidly and going beyond its visible bounds. E.g. continuing swiping into a docked toolbar or navigation bar, then swiping back into the list area. This can be reproduced consistently.
Steps to reproduce the problem:
Swipe rapidly either upwards or downwards and continuing swiping into a docked toolbar or navigation bar, then swiping back into the list area rapidly, back and forth.
It is easier to reproduce when there is a large number of list items, i.e. > 50, but can be reproduced with fewer items
It is easier to reproduce if there are multiple toolbars, i.e. a navigation toolbar and a panel containing a docked toolbar and an infinite list, but can be reproduced when the list is fullscreen.
Can reproduce on device (iPad) and in simulator. See attached video.
Can't reproduce in desktop Safari or Chrome
The result that was expected:
standard list swiping/scrolling behaviour
The result that occurs instead:
list freezes and all UI elements become unresponsive (e.g. buttons)
We have the same problem. From profiling the application, it looks like it has something to do to the animation queue - I saw animation frame fired event continuously without stopping for a long while.