I can easily see that I only get this negative untracked consumption when the furnace is running, but can’t think of what could be causing it. yes, I know that it’s just math total kWh - sum of individual sensors, but since it’s a negative value, then one of the 3 HVAC sensors are reporting too much kWh’s somehow? The untracked amount is similar to the heat pump sensor, but that is a legitimate circuit being measured. Am I thinking this correctly? This is coming from a Fusion Energy 16 sensor energy tracking unit I installed in my wiring panel, and just trying to sort out the bugs from my setup.
That is the issue. For the HVACs you can look at the refreshrate. Maybe that is off from the actual hour.
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That’s a good idea, maybe missing data if the refresh rate isn’t high enough. 
You can post a screenshot of the graphs of you want us to check
I think only refresh rate could explain it if you had too much untracked in one hour, and not enough in an adjacent hour.
That couldn’t explain it being consistently and repeatedly incorrect in the same direction.
Are all these sensors measured with CT clamps directly in the breaker? Could you have accidentally slipped one clamp around two wires, causing potential double counting?
There’s a decent chance it’s power factor as well
meaning in the programming? not sure what that means.
I have checked and rechecked that, but just checked again. it’s only happening when HVAC is running which should make it easier to track down. I just moved one of the clamps to a different leg, for the heck of it, because I still have the panel cover off until I get it sorted out.
I think this may be the issue. It’s been getting warmer here in the last few days the furnace hasn’t run, so there’s been no negative untracked consumption. the individual devices equals the total. when the furnace runs, the individual devices are greater than the total? I see the Refoss meter has power factoring, but I have never once seen an explanation of what that is. Is a setting? I think electric motors like my furnace effects power tracking, but can you factor that in? is that power factoring?