Source SDK Known Issues

This is a list of known and verfied issues with the Source SDK release, and potential workarounds.

Expert Compile Settings deleted after update

There is an issue with the Hammer Editor where Expert Compile mode settings are deleted for some users after the update. To restore the default settings, follow this procedure:

1. Delete the file CmdSeq.wc from your sourcesdk\bin directory.
2. Choose Refresh SDK Content from the Source SDK launcher window.

This issue will be addressed in another SDK Beta update.

"Steam validation rejected" Error

• Users may get this Steam error when loading a multiplayer map from Hammer. A fix for this issue is being developed. The current workaround is to start a local LAN server by adding +sv_lan 1 to the command-line when launching the game. Hammer users can find information about how to add this command-line parameter in this SDK FAQ article.

Issues on 64-bit systems

• There are some issues with running the Source SDK on the 64-bit version of Windows. A permanent fix for these issues is being developed. The current workaround is to run the SDK in 32-bit mode, as described in this SDK forum post.

Incorrect alpha value on displacements

• On some user's systems, especially users with DX8 or lower video cards, the alpha blend values of displacements are reversed in Hammer, although they are correct when the .BSP is viewed in the engine. The alpha values are correctly saved in the map -- the rendering in Hammer is incorrect.

The current workaround is follow these step when the map is ready to be compiled:

1. Click the Auto tab on the Visgroups bar to switch to the Auto Visgroups view.
2. Select the Displacements entry from the list of Visgroups.
3. Click the Mark button to select all Displacements.
4. Press Shift+A to open the Face Edit dialog and then click the Displacements tab.
5. Press the Invert Alpha button.
6. Choose Run Map... to compile the map and see the results in the game.
7. Repeat this process to restore the displacement visualization inside Hammer, and continue editing.

This will be fixed in an Source Engine update.

See also

• Source SDK Release Notes