Common TF2 Mapping Problems

 
Overview
This page is dedicated to helping new tf2 mappers with their maps. I know I've been stuck at one problem with no help, and I want to make sure it doesn't happen to anybody else. If you're an experience mapper, you're free to add to the list of problems. All contributions are welcome. Thanks, and have fun. Happy mapping.
| Geometry & PropsCommon Problems with geometry and props. Examplesproblem: My water isn't rendering. It has a transparent void texture. solution: your map has leaks. it doesn't matter where they are, if your map has any leaks at all, your water won't render. 
  Note:Leaks happen when inside geometry is exposed to the void. make sure to seal all your rooms and use a skybox for outdoor scenes. 		"They call it a leak because when you have one, your water doesn't render."	 — CRS 
 
 solution: use the console and type "mat_specular 0" 
  Deleting every cubemap will not solve the problem  Note:Developer Console can be enabled in game by going to Options > Keyboard > Advanced. 
 
 solution: Open console and...  
 
  Note:"mat_specular 0" alone will not fix this problem.  Note:Developer Console can be enabled in game by going to Options > Keyboard > Advanced. 
 Wiki Links | 
| Game LogicHow to work with game logic. ExamplesWiki Links | 
| Design FlowLevel design tips for tf2 mappers. ExamplesWiki Links | 
| Technical ErrorsThings that go wrong and you don't know why. ExamplesProblem: TF2 isn't launching when I press f9 Solution: Go to Tools > Options > Build Programs and make sure Game Executable is set to "tf_win64.exe" 
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