Unable to create a new contact in Big Sur 11.5.2
When I try to create a new contact in Contacts, the entry screen disappears after the first word to be replaced by a random existing card. There is no trace of the new card I started. This is a new MacbookAir with the new chip and OS.
There was a similar question string earlier in the year, with apparently no satisfactory answer.
MacBook Air 13″, macOS 11.5