Made an encrypted folder, won't open
I've been doing this successfully for years. This one won't open, I can open it using Disc Utility, Open Disc Image, it asks for the password and then I can Show in Finder. So it isn't a disaster but is rather a pain. It's a huge file so duplicating it would be a gigantic pain in the butt! The community won't allow me to enter Monterey 12.6 which what I'm actually using.
MacBook Pro 13″, macOS 10.12