This is crazy ! Whenever I select the EC135 in the aircraft selection menu, the map in the airport selection menu goes completely black - which makes me unable to select a starting point for the EC135 By selecting any other aircraft in the respective menu, the appropriate visibility of the map comes back again - on my system this strange bug only occurs when I select the new Helicopter.
Anyway, thank you IPACS, thank you dear developers.
PS: I could already solve this strange graphic issue with the new EC135 by deleting the main.mcf file !!!