Hey you should have searched for this problem .Many are facing difficulty with this.
Here is the link to the issue .
Hi guys, I tried installing versions 4.13 of UE4 but when I clicked on ‘add versions’ option it got stuck on ‘Please Wait…’ . Appreciate your help thanks.
Alright will do so.
Hi O_Parker,
The link A provided above is correct. In this instance, it would be best to navigate to http://help.epicgames.com/. We offer information on common issues from this page. In addition, if you don’t find the problem you are experiencing, you can fill out the contact form labeled “Email Us” in the “Contact Us” section for additional assistance.
Thank You sir for your help.