Unfortunately, even with version 0.87, I don't have a fix. Here is one example for weekly post where it duplicates on the first occurence. Look at June 6th. It's showing the same thing twice. Here is a monthly one, too. June 1st (Water Tower PAC) for a 2-week version. Look at August 29 for a Monthly version (WPNA Exec). The funny thing is that Aug 13th (Membership Meeting) is a monthly recurring meeting as well, but doesn't have the same problem, strangely enough.

It's a great module overall, but sure would like to see this fixed. I'm still using it because it's the best. Some day, I may even have time to look into it.