Helicopters jump in and out of ground effect when near raised platforms, the CFD is not calculating the drop

Do you have the same issue if you follow the OP’s steps to reproduce it?
Yes. Going from ground to a raised object is an immediate, exaggerated lift effect. There is no transition what so ever.

Provide extra information to complete the original description of the issue:
Any Helicopter trying to transition to a elevated landing pad/structure.

If relevant, provide additional screenshots/video:
Clip Here