I think there is a mistake on Arma 3 sample models, specifically on "Arma 3 Tools\Samples_F\Test_House_01\config.cpp", line 53.
The convexComponent for "Hitzone_1_hitpoint" is Dam_2 and again in line 90 for "Hitzone_2_hitpoint" there is the same name selection for convexComponent (Dam_2).
I think it should be a "Dam_1" for convexComponent in line 53.