Changed event wont update - (I have been invited)

Accepting invitations to events works fine.

But, if the inviter changes any details my calendar event does not update.

I receive the the "change" in my mail but cant get the event to update in Ical.

Tried double clicking the .ics with all force available.

*******************

Only work around - but a hassel - is:

Open the mail with update, press: show activity wich opens the event in web browser, download .ics to desk and double click.

Anyone got tips?

I have latest and all updates.