I updated to the latest version of 1Password few days ago and after the update, items tagged for the Watch were not displaying on the Watch anymore. I had to tag a new item for Watch to make everything display again. It is an old problem that I had before (with previous versions) and I thought it would be fixed by now.
1Password Version: 6.7.1
Extension Version: Not Provided
OS Version: iOS
Sync Type: Not Provided