Custom material change problem

Hi everyone,
I want to create some custom constructions with multiple layers to the box’s walls, roof and floor, in order to see the difference of the energy results when I change the thickness of the insulation layer. However I met a severe problem when I change the thickness of the insulation layer from 100mm to 150. The U-value and the cooling and heating load in the report did not change with the increse of insulation thickness.
But this problem won’t happen when I use opaque materials no mass.
And this problem also didn’t happened when I used the old version of HB and LB.
What am i doing wrong?

And if there is any other problem with my case please tell me either.

Thank you for all help!
container_simulation0727.gh (162.1 KB)