Hi Michael,

The Rebuild command has crashed a few times over here in the latest beta. Try this:

1: Create one or more standard circle curves and select them.
2: Use the Rebuild command.
3: Change the mode to endpoints.

I assume the crash occurs because closed circle curves don't have an endpoint. I hope it's reproducable, and not a quirk in my local installation.

On a side note: The DistortCurves script also crashes when I switch on the Rebuild command in there.

All the best,

Metin