Cant change Meet URL

Problem

Unable to change the default Meet URL. Get a red X and the OK button is greyed out.

Solution

Firstly let me say that I prefer adding a URL/meet than a meet.URL since I don't need to add additional SANs to my cert. This is the reason why this ussue has come up. In any event...
Topology builder will allow you to add a Meet and Dialin URL that actually conflicts with the External Web Services (shouldn't let you...)

 It does however give you an error if you try to make it the default or try to remove another meet url that is different from the External Web
Ultimately the simple URL's and the External URL's need to be different