Also had to change email on both Choice and United to make it work earlier in early August. Last made a transfer a week ago.
Tonight before the deadline, was going to make another transfer. Of course, a technical error popped up. My United account was no longer registered even though it still had my United # saved. When trying to re-register, the page automatically displayed an error 'Please complete all the required fields' 3 times in red with no input boxes on the page.
I almost wonder if this was intentional to stop transfers. When I checked last week, you could un-register a program but that capability seems to have now been removed.