Hi i know nick can answer you better when he’s around. But they stats do go away at the end of the month to start on a new month. Mine go blank on the lat day of every month. Im pretty suer when they run reports or update things, everything goes down and the stats are all wrong. I have had this happen a few times. But if you log in the next day they are usually back to the same thing. As for your commission drastically chaging on the last day of the month, im not sure about that. Never seen it happen on my end. Make sure to look at the actual monthly earning table rather that the traffic report. The traffic report goes up and down and the monthly earnings show you over all time that you have been a member and it is way more accurate. Just look at you net rev for the over all , deduct your chrageback and then get your % and add your bonus. And thats your commission for the month.
Hope that helps.