I have created a Member Area, and have signed up a member, and then set the role for that member to "Tech." I then set permissions for a dynamic page to Users with "Tech" role. But will not let this user access the page.
I'm not sure that I fully understand what you were referring. Can you please send us a video of the issue? Simply recreate the issue using screencast while recording the steps and add the screencast.com URL to your response.
As you can see in the video, the logic loops. You click on the button to set the roles for the page, and it takes you to a page that says, "No pages set up for this role. Click here to set up a page." And you when you click, it goes back to the same page where you click the edit button, and loop infinity.
This forum is specialised in the Wix Code products. It's a query about the editor itself which I'm not quit sure how to resolve it. I recommend contacting Wix Support team which know best about this feature.