Trying to use a template and it hangs

I select a template and it just hangs on the screen and says "working" on the bottom right corner

I was not able to replicate mentioned issue. I successfully used temple from template gallery. When I clicked on Use template button, form was created on my account. 

Can you please tell us which template are you trying to use? If possible provide us a link of that template from template gallery. Also if possible provide us a screenshot of your issue. 

I would also suggest you to try one more time with different browser.

https://www.jotform.com/help/106-How-to-use-the-form-templates 

Let us know if you need further assistance.