Yes, this bug is affecting me. Whenever I click Sharing options, share this folder...crash every time. Reported it on launchpad.
I got the same as you, and your bug report is now "Confirmed".
Any follow-up information on your issue would be appreciated. Please have the courtesy to report back.
I got this far..
This is Convergence
Ubuntu Development Version Testing Blog Remarks
Running 16.04 on Mobo: MSI model: B85-G41 PC Mate(MS-7850) v: 1.0