Unable to create an Application

I am attempting to create a new Application in the developer console. Immediately upon loading, the “Redirect URIs must use HTTPS protocol” error message is displaying. Entering any number of redirects using https does not clear the message. This is preventing the “Create” button from activating, no matter what combination of Category or Client Type I have selected. Is anyone else seeing this behavior?

Not something I can reproduce. One thing I would suggest you double check is that you don’t have any empty boxes for redirect URLs, for example in this screenshot I went to the Register Application page, entered http://localhost (as non-HTTPS is allowed for localhost), I ensured there’s no empty text inputs for redirect URLs, and it works fine.

Myself I got an empty/unpopulated redirect however I was able to populate the field and create an application.

You should additionally check if ad/script blockers have prevented the capctcha showing if one was attempted to be prompted to be processed by the user.