Hi Yuhnis!
Is that UUID in fact the UUID of an item, and not of a root template or so? If so, does prefixing it with "ITEM:" help? You can also try using the autocompletion feature of the editor so it adds ItemName_GUID to your script code. But note that autocompletion may only work if the name starts with "S_".
The "S_" prefix refers to "Script" and is a Larian convention for all items that are referred to script. It's to prevent level decorators from accidentally removing items that are used in script. This convention is somewhat enforced by the editor by e.g. only providing auto-completion for names that start with "S_". I still have to find a good place on the wiki to mention this.
