Groups widget says 'REQUEST SENT' after I'm a member

Hi! We use the Groups widget on our landing page. I am a member of all our groups, but on some the widget displays “REQUEST SENT” and on others “YOU’RE A MEMBER”. In the groups it says I’m a member on all of them.

I see this for a colleague as well. We both have the rank Community Manager. For my regular user it seems to work - but it’s still a bit confusing. Is this a bug?

Thanks, 

Stine