glitch

i went to run a game on wind up and for the knoll hunters i decided to try and land on top of the statue in the corner. i missed the statue and hit the wall in the corner however i went straight through and out/under the map. i though this was a one off so i restarted the map and it happened again so i took some screenshots. i hope someone can fix this soon. many thanks, ps orcs must die is awesome!!!!!
 
http://cloud-2.steampowered.com/ugc/900985983949800826/A25B44CE40B03632E...
http://steamcommunity.com/sharedfiles/filedetails/?id=121772854
http://steamcommunity.com/sharedfiles/filedetails/?id=121772803