invitations not disappearing

Some times I get an invitation, and no matter what I click, it won’t go away.
I accepted it, Tentative it, and Declined to it, it won’t work. it keeps poping up.

I’ve used emClient version: 7.2.37929.0
I’ve tried the new 8 beta version.

nothing works.

any advice’s?

adding a picture of the example invitation: