It’s likely that 1Password 7 is not compatible with MacOS 27. I know some dislike having their passwords off their Mac, but the web version across all devices is really nice and the AgileBits security is very good; your vaults and Internet transits are encrypted and you are the only one with the key. The one thing I still keep version 7 for is to do a complete printout of the entire vault, which is no longer allowed in version 8. It appears I may have to run that on another Mac or a virtual machine with an older version of MacOS
Working perfectly for me.