That's a great idea. unfortunately there was no hidden dialog. Even with a clean re-boot.
I took a sample of the hanging process so one could see what it was trying to do:
https://1drv.ms/t/s!Ahn19Qp_SaKQrwgJVnYs3KXTPrSX?e=59Pt6g
Maybe that can be passed on to the team...

Cheers,
Lars