It seems we could finally solve the problem. We are rolling out a new dll. If you go to your [FS]\Modules folder you can delete the LHBP_objectPlacer.dll. Than go to [FS]\Addon scenery\LHS_LHBP_X\ and run the LHSproductact.exe. It will reactivate the scenery and download a new dll.
The new dll should be the version 184.108.40.206, you can right click on the dll Properties than Details. Or in FS you can find under Add-ons menu, LHSimulations – About LHBP.
More info here: http://lhsimulations.com/forum/index.php?topic=691.60