EM Client tags don't show up in outlook mailbox

If I put tag on shared mailbox email it shows in em client. Mine is yellow. Purple is my coworker who put tag on outlook. In EM client everything works well

But in outlook it shows em client tag when e-mail is open as you see in Oval on the picture. But it does not show tag in square as my coworker tag is shown below.

I would like that emclient tag would be shown in square too. How to fix?

Choose “Use the new Outlook”. There, Tags are displayed correctly.