Except...it wasn't. I keep getting this error for new, current requests sent to my outlook.com mailbox (funneled through Outlook client in Office 2013.) 

Can anyone solve this? I've searched the forums online and can't find any acceptable fix. I do not want to ask the sender to re-send in the vain hope that it works, nor do i want to copy and paste and make my own meeting instance as this won't allow for changes/updates. 

thanks.

Hi,

Whats your and senders account type?

Does any other attendees under this meeting have the same error?

Similar thread for reference

https://social.technet.microsoft.com/Forums/msonline/en-US/b459a1e8-6bdd-43cb-9529-c7f90de24b66/recurring-meeting-not-current-unable-to-accept-meeting-requests?forum=onlineservicesexchange

Best Regards.