Auth0 Email Verification Link Not Working

We are in the testing phase and are using the default email verification template. When I click on it from a machine/user account not verified prior I get and error page. After some “testing” I found that if I change the protocol from https:// to http:// once per machine that the url launches my callback (which is http:// on localhost). Subsequent attempts to click the https:// url in my email inbox in the browser lauch the callback correctly. Any ideas what is going on here? Is this directly related to the non https:// localhost callback configured in my tenant?