[Bug]: SetVariantString does not work in MCV

[DrAbcOfficial]

Prerequisites

• I have checked that my issue doesn't exist yet in the issue tracker

Operating System and Version

Debian 6.1.124-1 (2025-01-12) x86_64

Game / AppID and Version

MCV (1012110), Version: 1.38.0.0

SourceMod Version

1.13.0.7200

Metamod:Source Version

2.0.0-dev+1319

Version Verification

• I have updated SourceMod to the latest version and the issue persists
• I have updated SourceMod to the latest snapshot and the issue persists
• I have updated Metamod:Source to the latest snapshot and the issue persists

Updated SourceMod Version

1.13.0.7201

Updated Metamod:Source Version

2.0.0-dev+1321

Description

I tried to specify follow entity for prop_dynamic in MCV via SetParent and SetParentAttachment, but in testing I found that SetVariantString doesn't work correctly

Steps to Reproduce

// This code not work, SetParent by specifying the targetname also doesn't work, presumably SetVariantString is not running correctly
SetVariantString("!activator");
AcceptEntityInput(skin, "SetParent", client, skin);
// Set parent
SetEntDataEnt2(skin, 0x168, client, true);

// This code throwed error:
// ERROR: Tried to SetParentAttachment for entity prop_dynamic (prop_dynamic), but it has no attachment named .
// It's should be set to attachment named 2
SetVariantString("2");
AcceptEntityInput(skin, "SetParentAttachment", skin, skin, 0);

Relevant Log Output