@jmuspratt@mastodon.social I've figured it out!!! I went through the flow to trigger the crash, got app diagnostics and found that some of my items had a corrupted creation date prior to 1970 - the underlying 1Password validation library crashes when it finds these items. Manually recreating these (duplicating preserves original creation date) and then deleting the originals resolved the issue. I had to use the 1Password CLI to identify the culprits, this is the command I used: op item list --format=json --account my.1password.com --include-archive \ | jq -r '.[] | select(.created_at < "1970") | "\(.id)\t\(.title)\t\(.vault.name)\t\(.category)\tstate=\(.state // "active")\tcreated=\(.created_at)"'