UnloadTexture did not set texture id to NULL.

src/core.c

@@ -1251,7 +1251,6 @@ int lcoreSetShaderValueTexture( lua_State *L ) {
 		lua_pushboolean( L, false );
 		return 1;
 	}
-	// SetShaderValueTexture( *state->shaders[ shaderId ], locIndex, *state->textures[ textureId ] );
 	SetShaderValueTexture( *state->shaders[ shaderId ], locIndex, *texturesGetSourceTexture( textureId ) );
 	lua_pushboolean( L, true );
 

src/state.c

@@ -122,13 +122,13 @@ void stateFree() {
 	for ( int i = 0; i < state->imageCount; ++i ) {
 		if ( state->images[i] != NULL ) {
 			UnloadImage( *state->images[i] );
-			free( state->images[i] );
+			// free( state->images[i] );
 		}
 	}	
 	for ( int i = 0; i < state->textureCount; ++i ) {
 		if ( state->textures[i] != NULL ) {
 			texturesFreeTexture(i);
-			free( state->textures[i] );
+			// free( state->textures[i] );
 		}
 	}
 	for ( int i = 0; i < state->fontCount; ++i ) {

src/textures.c

@@ -111,6 +111,7 @@ void texturesFreeTexture( size_t id ) {
 			UnloadRenderTexture( state->textures[id]->renderTexture );
 			break;
 		}
+		state->textures[id] = NULL;
 	}
 }
 /*
@@ -1746,9 +1747,7 @@ int ltexturesUnloadTexture( lua_State *L ) {
 		lua_pushboolean( L, false );
 		return 1;
 	}
-	// UnloadTexture( *state->textures[ id ] );
 	texturesFreeTexture( texId );
-	// state->textures[ id ] = NULL;
 	lua_pushboolean( L, true );
 
 	return 1;