David,
Here is what happened last month when trying to do this:
WorldWindow test2.
Trying to restore image sanity thru emergency evaluator is not for faint
hearted...
I could not reproduce the problem this month
(but the window is not much usable, especially once opened in full screen,
the cursor position has an upsetting offset... be prepared to close the
image without saving)
I presume that not reproducing the emergency is one of the good side effect
of reducing global World pressure.