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[Linux compatibility] MaterialSystem cannot load: No ShaderAPIFactory!

Status: Open.

#1973 In ValveSoftware/source-sdk-2013;

· Secton opened on Jul 17, 2026

Proper Dedicated server build scripts and itemserver bug

Status: Open.

#1962 In ValveSoftware/source-sdk-2013;

· BringBackQuickPlay opened on Jun 25, 2026

[Any] VPhysics x64 crashes in 2 places when vehicles are not modelscale 1.0

Status: Open.

#1961 In ValveSoftware/source-sdk-2013;

· ArgonianGuard opened on Jun 21, 2026

Brush face texture x y scale (and potentially other data) should be exposed to shaders

Status: Open.

#1937 In ValveSoftware/source-sdk-2013;

· AdamTadeusz opened on May 26, 2026

TF2 SDK doesnt has the current vscript that's in the live tf2

Status: Open.

#1921 In ValveSoftware/source-sdk-2013;

· Snowywasbanned opened on May 16, 2026

Access violation when calling either of the Get/SetKeyValuesExpressionSymbol funcs multiple times

Status: Open.

#1918 In ValveSoftware/source-sdk-2013;

· dillydylann opened on May 11, 2026

tangentSpaceTranspose matrix in lightmappedgeneric should be correct when TANGENTSPACE parameter is set to true and the material has no envMap or bumpMap

Status: Open.

#1916 In ValveSoftware/source-sdk-2013;

· AdamTadeusz opened on May 11, 2026

Hidden Allow-List Prevents New Particle Operators From Functioning

Status: Open.

#1909 In ValveSoftware/source-sdk-2013;

· birchish opened on May 3, 2026

VBSP generates wrong collision for some brushes

Status: Open.

#1903 In ValveSoftware/source-sdk-2013;

· L0jk4 opened on Apr 27, 2026

VBSP: Argument mismatch for -dumpstaticprops

Status: Open.

#1901 In ValveSoftware/source-sdk-2013;

· maxik34 opened on Apr 25, 2026

Day Night Cycle

Status: Open.

#1890 In ValveSoftware/source-sdk-2013;

· 4Rock4 opened on Apr 16, 2026

Push the changes made to the engine to the SDK

Status: Open.

#1848 In ValveSoftware/source-sdk-2013;

· polydott opened on Mar 21, 2026