diff --git a/module/applications/sheets-configs/setting-feature-config.mjs b/module/applications/sheets-configs/setting-feature-config.mjs
index f90bb52f..a5bcc4f9 100644
--- a/module/applications/sheets-configs/setting-feature-config.mjs
+++ b/module/applications/sheets-configs/setting-feature-config.mjs
@@ -188,8 +188,9 @@ export default class SettingFeatureConfig extends HandlebarsApplicationMixin(App
         if (type === 'effect') {
             const move = foundry.utils.getProperty(this.settings, this.movePath);
             for (const action of move.actions) {
-                const remainingEffects = action.effects.filter(x => x._id !== id);
-                if (action.effects.length !== remainingEffects.length) {
+                const actionEffects = action.effects ?? [];
+                const remainingEffects = actionEffects.filter(x => x._id !== id);
+                if (actionEffects.length !== remainingEffects.length) {
                     await action.update({
                         effects: remainingEffects.map(x => {
                             const { _id, ...rest } = x;
diff --git a/module/config/itemConfig.mjs b/module/config/itemConfig.mjs
index a3e785c3..84bbbbdc 100644
--- a/module/config/itemConfig.mjs
+++ b/module/config/itemConfig.mjs
@@ -453,7 +453,7 @@ export const allArmorFeatures = () => {
             const feature = homebrewFeatures[key];
             const actions = feature.actions.map(action => ({
                 ...action,
-                effects: action.effects.map(effect => feature.effects.find(x => x.id === effect._id)),
+                effects: action.effects?.map(effect => feature.effects.find(x => x.id === effect._id))??[],
                 type: action.type
             }));
             const actionEffects = actions.flatMap(a => a.effects);
@@ -1407,7 +1407,7 @@ export const allWeaponFeatures = () => {
 
             const actions = feature.actions.map(action => ({
                 ...action,
-                effects: action.effects.map(effect => feature.effects.find(x => x.id === effect._id)),
+                effects: action.effects?.map(effect => feature.effects.find(x => x.id === effect._id)) ?? [],
                 type: action.type
             }));
             const actionEffects = actions.flatMap(a => a.effects);