2021 Momentum 381mr heat distribution

[CampingwithJoy]

Our first trip out this weekend in our 2 day old 381MR for my Daughters wedding and I was very disappointed in the heating system. Tried running the heat pump, seemed to do ok, not a lot of heat output. But when the temperature dropped down around thirty the first night the gas furnace kicked on, woke up sweating.In the master bedroom it was 88 degrees went into the main room it was 68 with the bedroom door open, the garage was 60 with the garage door open. Thought maybe I didn’t have something set right ,next day ,I tried going through it all again. Heat pump seems to work great during the day when it was just a little cool. Had heat pump selected as preferred source, fan on auto, heat only. By the way ,could not find any heat ducts in garage area? I read that there was supposed to be one in the 38MR, anyone know for sure?
So ,
The second night, same thing , woke up it was unbearable in the bedroom and cold in the main. We had to open some windows in the bedroom.
I can only find one vent in the bedroom and one in the main bathroom (same wall behind sink) two vents under island in kitchen( same hole under island) and no other heat vents anywhere. ( None in garage)
Is it normal to have such a huge discrepancy (20 degrees). I can deal with a small heater in garage ,but not the huge difference in the bedroom/ main room.
Considered blocking the bedroom vent but think it could disturb air flow / pressure from the furnace.
Maybe try and reroute it to under kitchen cabinets ?
I may try and remove the false wall in basement and see what I can find under there.
Really thought the heat pump would do a little better job than this, just doesn’t get very warm.
We love this rig but very disappointed in the heating balance, any thoughts or ideas would be great.
Anyone else have this issue and solved it?
Thanks
Camping with Joy