Now copy that group into another mapfile.

Wait for the name at the origin to turn red (then it's selected) Select the first func_group in the list and go through all of them by using the down-arrow on your keyboard. you have a bad func_group but no func_group in the list without arrow:.you dont have anything written at the origin: Scroll in and out inside the 2d window until it pops up.you have several different things written there: one by one.main entrance): search for 'main entrance' in the list and not for a func_explosive or whatever entity it is Now a func_group with sv_brushmodel 0 (> no brushes attached) has no arrow since there are no brushes, right? Normally all Entities which consit out of several brushes (func_, etc) have an arrow in front of the name to bring down the brush-list of that single Entity. In this test-map you see there are 2 func_groups in the list. Now just press L to bring down the Entity list. Let's say there is a 'corrupted' func group (screenshot) In GtkRadiant 1.5 and NetRadiant (I don't know about the others) you see your 'corrupted' entity/brushes in the map origin (0 0 0). This error has actually become a standard guest in my mapping process and the solution is far simpler than copying the whole map (which I also did at the beginning). Therefore I strongly advise you against the quite common solution of copying your brushwork into a new map-file!!! In some Radiant versions there is a bug which changes (all) targetnames when you copy/paste entities into different mapfiles.

Wolfenstein enemy territory error