Hi jmelwak,
Thank you for posting about this issue. It is a current issue we are trying to solve. We believe this issue to be caused by crawling SE robots/spiders, but still investigating. Unfortunately it is taking longer than we want to get to the bottom of this as the data supporting this theory is sporatic & affected by many variables.
We will investigate your account specifically. Also, I encourage anybody else with this issue to post here or email me with your affiliate id, it’s a big help!