Duplicate listens with last.fm connect?

I only use last.fm connect to submit listens to LB.

There seems to be a problem with duplicate listens being submitted. They are not duplicate in Last.fm.

LB screenshot:

Last.fm screenshot:

My LB profile and my Last.fm profile. If you compare them you can see other examples of this.

That’s odd. It seems that the importer created two listens with the exact same data except for the MSID