TAG's are not working correctly when searching in 1Password Web

Dear 1Password Support Team,
I’m a long time user… and there is something wrong with 1Password Web.
TAG's are not working correctly when searching in 1Password Web

I’ve using TAG’s a lot to find logins easier but there is a bug in 1Password Web (my.1password.com).
Unfortunately there is no dedicated support forum category so I have to put my problem description in some other topic. I use 1password.com with Chrome on Windows 10 so I’ve choosen the Windows category.
I’ve two logins tagged with “EAD” but when I search for EAD the result in 1Password Web is empty.
When I browse to the TAGS section and open EAD tag manually it will show up the two accounts.
When I search for EAD in all items the 1Password WEB only shows 4 hits (excluding the ones tagged with EAD).
When I search in the 1Password iOS app about 10 hits are shown incl. the one eith the EAD tag.
This is very bogus. Please repair the search in 1Password web!

Kind Regards
Jens

1Password Version: 7.2.7 on iOS 12.1.3
Extension Version: not used in this case
OS Version: Windows 10 V. 1709 with Chrome 72.0.3626.81
Sync Type: 1Password.com Account