I dont think that it is that, because other features such as the disabled rendering joke, unlimited jumps and invincibility options are all there. And I already reinstalled the mod multiple times following your tutorial. Here's what the loader window gives me this:
ERROR WHILE LOADING DLL:
GML Compile Error: Errors parsing code when trying to compile modified "gml_Object_obj_menu_wysapi_colormenu_squid_color_Create_0":
Unexpected token in expression around line 4, column 15.
Malformed assignment statement.
STACK TRACE:
at UndertaleModLib.Models.UndertaleCode.ReplaceGML(String gmlCode, UndertaleData data) in D:\a\GS2ML\GS2ML\undertalemodtool-src\UndertaleModLib\Models\UndertaleCode.cs:line 1399
at GmmlHooker.GmlSafeExtensions.ReplaceGmlSafe(UndertaleCode code, String gmlCode, UndertaleData data) in C:\Users\rando\source\repos\BetterSnailEditor_GS2ML\lib\gmml\GmmlHooker\src\GmlSafeExtensions.cs:line 11
at BetterSnailEditor.GameMakerMod.MakeColorMenu(String name, String global_var_name, Single darkBlend) in C:\Users\rando\source\repos\BetterSnailEditor_GS2ML\BetterSnailEditor\src\GameMakerMod.cs:line 426
at BetterSnailEditor.GameMakerMod.AddMenuItems() in C:\Users\rando\source\repos\BetterSnailEditor_GS2ML\BetterSnailEditor\src\GameMakerMod.cs:line 278
at BetterSnailEditor.GameMakerMod.Load(Int32 audioGroup, UndertaleData data_source) in C:\Users\rando\source\repos\BetterSnailEditor_GS2ML\BetterSnailEditor\src\GameMakerMod.cs:line 29
Skipping to next mod...
then, some mods are active, but most of them aren't avaiable.