Paid Attendees dropping to NO on Events Again

We had this fixed by your team a few months ago. Tried to update to Membership 2 and the latest Events+ but all the failed as the old data would not import. We restored site back to Membership Pro and had to reinstall Events+ from a pervious version we got from your site.

Now the issue of Attendees dropping down to No, not Attending is back . This is the previous support item on this: