I have a duel fuel set up and last night it got below the balance point of 35 degrees and kicked on the gas. I also noticed that the heat pump was also kicking on at the same time. (I've switched to Aux heat for now so i have heat and don't damage the HP) My system is set up with the Vision pro controlling the heat pump as heat and the furnace as aux heat. Ichecked the programing and know the lock out is set up for the heat pump but it doesn’t lock it out. Any ideas what could cause this?