From f8877aedf33d448d853099be689a9e3859ce4ce9 Mon Sep 17 00:00:00 2001
From: Michael Green <abc.mikey@gmail.com>
Date: Mon, 17 Mar 2025 09:25:41 +0100
Subject: [PATCH] fix for shorthand formula where the item key may also be
 undefined

---
 module/actor.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module/actor.js b/module/actor.js
index 4baaa31..6e84b9d 100644
--- a/module/actor.js
+++ b/module/actor.js
@@ -176,7 +176,7 @@ export class SimpleActor extends Actor {
       let formula = '';
       if ( !!shorthand ) {
         // Handle grouped attributes first.
-        if ( data.items[item][k][gk] !== undefined ) {
+        if ( data.items[item][k]?.[gk] !== undefined ) {
           formula = data.items[item][k][gk].replace('@item.', `@items.${item}.`);
           data.items[item][k][gk] = Roll.replaceFormulaData(formula, data);
         }