[Plugin: BuddyPress Group Twitter] duplicating and triplicating posts to group activity

My tweets come into the group as expected.
On subsequent logins to my buddypress site, the tweets have duplicated, then triplicated. I deleted some of the postings from the group activity, but they just come back later.

As far as I am aware, no other plugin could be interfering with this.

Anybody else noticed this same problem?

https://www.ads-software.com/extend/plugins/buddypress-group-twitter/