Hi Michael,

thanks for your reply.

QUOTE
re:
> Why does the center of a circle disappear?

Basically because it's the same behavior as all curves - once you have drawn a curve points that you used to generate the curve are not displayed anymore.

But it can be targeted by object snaps.
UNQUOTE

The object snap did not work then suddenly. I cannot pick it up from the center point, nor feom the quarter points. But in general I can pick it up of course anywhere but it's not precise anymore then.


QUOTE
re:
> the division in quarter and half is gone as well.

Could you please describe this part a bit more? I'm not understanding this part.
UNQUOTE

Please see in the picture. This is what I meant with quarter and half division. This is missing when the feature is lost to pick the center point up.

Best regards,
Axel