After the installation of AECOsim Building Designer the placed HVAC Elements are not visible.I can place but I can´t see.
The Problem is the file "MSComctlLib.exd".
It is located in this directory:
C:\Users\%Username%\AppData\Roaming\Microsoft\Forms\
Please try: If you can not place HVAC Elements in Bentley Building Mechanical Systems or AECOsimBuildingDesigner you can remove (please make a backup copy of this file) this file and restart Bentley Building Mechanical Systems or AECOsimBuildingDesigner.
See Also
Cannot place Ducts or Plumbing Featureshttp://communities.bentley.com/products/building/building_analysis___design/w/building_analysis_and_design__wiki/26104.cannot-place-ducts-or-plumbing-features