User gets invited to a recurring meeting, but only gets invited to one of them

As written in the title: User gets invited to a recurring meeting, but only gets invited to one of them

 i am unable to find the reason to the issue. 

I have personally tried to send this invite from the user who invited via remote control - and to specify, we are forwarding the series of meetings, and not a "single" occurrence. 

We have tested internally in the office, and we cant seem to force the error.

The user forwarding is not the owner of the meeting. However this has not seemed to be an issue, during testing.

Anybody experienced this or has any tips?