This just started happening to me…out of nowhere.
Turns out Cubase crashed on shutdown and the saved file would continue to freeze after 1 min or 2.
Luckily I had a .bak but lost about 20-30 mins of work… argghhh
EDIT: Nope…still happening. wth.
EDIT II: It was the ASIO-Guard!!
Once I turned it off it seems to have allowed me to continue…