Their tech support usually gets back to you within a few hrs, keeping in mind they are in California. Send them the pictures and the data logger file and see what they say. I've also noticed that the bottom numbers do not update once they are displayed, whatever number they come up on they keep until they step to the next number. The numbers elsewhere on the display will continue to change while the same bottom number is displayed.
My only complaint with JPI is they don't publish what changes are made to different revs of their software. Sometimes it's obvious changes to the display or menu, but other times there is nothing visual, which leads me to believe they have probably quietly fixed a bug or two.