Height change after creating package

I’m currently editing scenery and I experience a height difference between the loaded scenery project and the loaded package.
I adjusted the height of each object precisely but after leaving the editor and starting a normal flight they’re either floating or below the ground.

Is there a way to show the actual ground in the editor? Or is this a bug?

Best regards

Comparison: before/after changing from loaded project to loaded package:

Hi, apparently a bug. For some time now, I’ve had the runway and taxiway in the project floating above the ground. I’ll wait to see if there is any documentation about it.
I wish you success

I could fix it by deactivating rolling cache