Sharpoint designer 2013 crashes when Workflow People/Group Selection after adding AAM [duplicate]

This question is an exact duplicate of:

• Sharpoint designer 2013 Stopping when Workflow People/Group Selection 1 answer

I have same issue as mention in this post. Sharpoint designer 2013 Stopping when Workflow People/Group Selection

And also as answer mentioned My website has same thing. like http://<systemname> as Default and http:\\mycompany.com as intranet.

And aslo I opened in website in designer is http://<systemname> . It used to work before I adding AAM url. Now it is not working.