Making a map in UDK. My Character keeps falling through floor. Need Help. Rocket League Mods › Forums › Modding Help › Making a map in UDK. My Character keeps falling through floor. Need Help. This topic contains 0 replies, has 1 voice, and was last updated by maxyield 2 years, 2 months ago. Author Posts December 12, 2016 at 9:43 pm #165046 maxyieldParticipant Hello, not sure if anyone can help me here. Im trying to make a custom map in UDK and although I set my floor to blockall and add a blocking volume, my character still falls through it. Not sure why it happens if my collision is set to block all. Any help would be great. Thx. Author Posts You must be logged in to reply to this topic.