I had this problem as well. It came down to what I was using in the user login field. You can choose either username or email. When I chose email, it would just spin forever. However, if I used my “name”, it worked.
While it may not exactly match up with the body of your message, I think this would fit the subject line rather well:
The Adventurer’s League modules on the DM’s Guild that end in -00 are usually good for introducing people to D&D. They usually have a nice balance of role-play and tactical combat, are low level, and are short or broken down into segments. I personally enjoyed DDAL10-00 Ice Road Trackers. It’s four short 1-hour episodes that can be strung together for a larger story arc.
I guess that Transformers mobile isn’t coming out then.