- fixed the substitution logic in FTexture::GetRawTexture.

This may only perform a substitution if the offset is not 0 and if the size matches.

src/gamedata/textures/texture.cpp

@@ -226,14 +226,23 @@ FTexture *FTexture::GetRawTexture()
 	if (OffsetLess) return OffsetLess;
 	// Reject anything that cannot have been a single-patch multipatch texture in vanilla.
 	auto image = static_cast<FMultiPatchTexture *>(GetImage());
-	if (bMultiPatch != 1 || UseType != ETextureType::Wall || Scale.X != 1 || Scale.Y != 1 || bWorldPanning || image == nullptr || image->NumParts != 1)
+	if (bMultiPatch != 1 || UseType != ETextureType::Wall || Scale.X != 1 || Scale.Y != 1 || bWorldPanning || image == nullptr || image->NumParts != 1 || _TopOffset[0] == 0)
 	{
 		OffsetLess = this;
 		return this;
 	}
 	// Set up a new texture that directly references the underlying patch.
 	// From here we cannot retrieve the original texture made for it, so just create a new one.
 	FImageSource *source = image->Parts[0].Image;
+
+	// Size must match for this to work as intended
+	if (source->GetWidth() != Width || source->GetHeight() != Height)
+	{
+		OffsetLess = this;
+		return this;
+	}
+
+
 	OffsetLess = new FImageTexture(source, "");
 	TexMan.AddTexture(OffsetLess);
 	return OffsetLess;