I found that a dongle crash leads to freeze Dorico. It seems that the dongle needs a proper connection during your work. So please make sure to connect it directly with the Desktop and such.
Dorico saves a pretty last version of your work. It automatically asks for it. Which is fine.
I know some software which uses Codes only and/or online authorization. Might be a suggestion for steinberg to have a look into it nowadays.
Maybe there are ways to handle the situation after the dongle crash more properly from my side though.
Please let me know…