T3ed Troubleshooting guide
Hopefully this page should help resolve some irritating issues that come up frequently.
The editor crashes when subtracting the builder brush
Trouble selecting objects and brushes in the 3D viewport on systems with ATI Radeon video cards
T3ed can sulk while using ATI cards if you have the quality settings too high. In ATI Display Settings > 3D, try moving the DirectX slider towards the left (better performance end) until the problem ceases.
For more information, see Graphics Card Issues.
Static Buffer Vertex Error
This may involve a limit on how many objects can be present in the map. See this thread: http://www.ttlg.com/forums/showthread.php?t=94963
No sound in fullscreen
When testing map, freezes at loading screen
Try copying the .gmp files from the game into your maps directory, or see this thread: http://www.ttlg.com/forums/showthread.php?t=94611
At the loading screen when testing map, a Visual C++ "Abnormal program termination" error is displayed
This is caused by a missing .gmp file. See the above entry ("When testing map, freezes at loading screen"). If this occurs when testing your map outside of the editor (e.g. through GarrettLoader), make sure you have created .gmp files for all of the maps in your mission. Also make sure that they have the same filename as the corresponding .ibt files. (You will often need to rename the .gmp file - e.g. you want MyMission.gmp, not MyMission123.gmp)
Brushes disappear when playtesting map
You may have inverted a brush (dragged it backwards on itself so it is inside out). See this thread: http://www.ttlg.com/forums/showthread.php?t=94501
Lights shine through walls
This is probably a bug of the lighting engine. Make sure that the BSP surface for the wall is set to cast shadows. See this thread: http://www.ttlg.com/forums/showthread.php?t=94417. Also, it is usually necessary to increase the shadow extrusion distance of the light. A extrusion distance that is too short will mean that BSP doesn't cast shadows beyond the other side of a wall.
Maps out of sync when playing/replaying a multi-map mission
There is a specific way you need to set up missions that use multiple zones. See this thread: http://www.ttlg.com/forums/showthread.php?t=94258
Light gem not lighting up properly
The light gem seems to require nearby brush surfaces in order to work properly. If you are out on a static mesh away from a brush, it may not correctly indicate light levels. See this thread: http://www.ttlg.com/forums/showthread.php?t=95273
FM saving/reloading problems
If you have problems with saving/reloading while playing your FM (loading your save brings back to the start), just be sure that you put the map name here:
I.e.: if your map file is called LJLabyrinth.unr, you should add "LJLabyrinth" in Title field, without the file extension.