> If you really need to update and then immediately remove the polyline,
> add a short delay before doing theremoveOverlay()

I seem to be running into the same problem. I suspected something like
what you describe (race condition between background rendering and
foreground thread) to be the cause, so I delayed the removeOverlay
until after I receive the addoverlay event. However, this doesn't seem
to help. Is there any event that *reliably* occurs *after* the
polyline *really* has been drawn and connected properly so that
calling removeOverlay for it is safe?

Thanks,
-- Axel
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