A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
Starting a radio show sounds interesting here. Also, hats off to you as you have finished almost 99% if the game.
No, I never faced any such kind of an issue.
Try to reinstall the cloud build app by following the proper guidelines these time. If that too is not helping then maybe the UDID is not...
It takes days for a person to remove regression bugs. Have some patience as it is a difficult task.