Damn! It's been wiped! I tried to save it earlier, and it did the runtime error.
I can't div, as if I try to save it it won't save.
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Also, what I've noticed.
It some time occurs when it does autosave.
When I copy something, with more then 4 sides.
Lots of polygons will set it off.
It opens about 20 times - I have to fight with it got get rid of it.