Some of your original post appears to have not posted... It looks like you are having issues with the holding tank readings shown on the display on the In Command... If this is the case and none are reading correctly then try the following:
1. Reset the BCM and power the display up and check tank levels
2. If tank levels on all tanks still not reading then
.. there is a ribbon cable to the BCM for the tank sending units... verify good connections
Before I would take to the dealership for this on Monday give Jensen In Command Tech Support a call and they may be able to help you as well
https://in-command.net/control-systems/