Calling popScreen from touchend event causes eventual DOM Error

[Noctivagan]

If I call bb.popScreen() from the funciton fired from the touchend event, it seems to make the application unstable. Initially it looks ok, but a click on the action-bar displays elements from two different screens and eventually causes NOT_FOUND_ERR: DOM Exception 8 in bbui-0.9.4.js: 635. If I call the bb.popScreen() from a button on that page instead of the touchend, the exception does not occur. Any thoughts what might be causing this unstability?