EPS BOX-SP high house load while forced charging

[JAD801]

I have recently had an EPS BOX-SP added to my KH inverter (10.5) and battery setup.

Now, while force charging, I see a reported house load which is far above the actual load..
In self-use mode everything reports correctly.

See post and pre installation power charts below.

Something is clearly not setup / connected properly, any ideas where to look first.
I've checked the KH10 and it's set to CT for it's readings.