Jeff, That's exactly what I'm seeing also.
I'm running version 2012 with the service pack installed and it works fine when I click on an arc. Not the OP's arc but one I drew.
dsigman, thanks for the input. It seems to be limited to 2013 and something to do with a bug in the unit arc length.
Correct, works fine in 2012 for me as well. This issue is limited to the 2013 product.
I have the same issue in 2011, with the service packs installed. To make it work, change the "Fixed .." from Delta to Radius. Then input the info you want and see if it doesn't work. Aggravating, but it works.
Surveyor Lee
