Update on my alt experiment...

Was able to complete the level one MSQ quest, attune to all the aetheryte around the city (Ul'dah), and then ran all the way to Mor Dhona with my level 1 character (I even died once on the way) to get my black swimsuit.

I then logged out of this char and attempt to reconnect on my main char and it did not work, still go error codes.

At that point I attempted to switch back to the alt I had just created and ran to Mor Dhona... error codes.