Airport looks different after loading in community folder

Hi there,

been creating another small airstrip and once I load it in the comm. folder there are boats missing, aprons on wrong position and houses are not fit to the ground anymore.
Checked console. Zero failed, all done.
Boat,Boat 2 just disappear although placed in a big river. Hangars reset angles so they are in the air now.
Modeled the runway to fit to the environment, but nope, after in comm folder, the runway is always priority 1 and overrides other aprons.
Any way to solve it? Maybe another big polygon? Not sure about that.