There are 2 steps to user creation: registering the account and creating/loading the profile, I guess on your system it is the latter then that fails for some reason (we’ve seen either step fail in the past, and have not always been able to determine the cause). So, check this option:
Feel free to PM me your installation log file (most recent file that’s prefixed with MSI in your temp folder - use %TEMP% in your explorer’s address bar) so I can see more details about what failed