fixed #5698

client/components/rules/actions/boardActions.jade

@@ -24,6 +24,7 @@ template(name="boardActions")
         | {{_'r-the-board'}}
       div.trigger-dropdown
         select(id="board-id")
+          option(value="" disabled selected if=not boards.length) {{loadingBoardsLabel}}
           each boards
             if $eq _id currentBoard._id
               option(value="{{_id}}" selected) {{_ 'current'}}
@@ -85,6 +86,7 @@ template(name="boardActions")
         | {{_'r-the-board'}}
       div.trigger-dropdown
           select(id="board-id-link")
+            option(value="" disabled selected if=not boards.length) {{loadingBoardsLabel}}
             each boards
               if $eq _id currentBoard._id
                 option(value="{{_id}}" selected) {{_ 'current'}}

client/components/rules/actions/boardActions.js

@@ -1,7 +1,13 @@
 import { ReactiveCache } from '/imports/reactiveCache';
+import { TAPi18n } from '/imports/i18n';
 
 BlazeComponent.extendComponent({
-  onCreated() {},
+  onCreated() {
+    // Ensure boards are available for the actions dropdowns. This subscription
+    // is lightweight because the server publication already filters boards
+    // to those visible to the user.
+    this.subscribe('boards');
+  },
 
   boards() {
     const ret = ReactiveCache.getBoards(
@@ -19,6 +25,17 @@ BlazeComponent.extendComponent({
     return ret;
   },
 
+  loadingBoardsLabel() {
+    // Provide a translated label when available, otherwise fallback to English
+    try {
+      const txt = TAPi18n.__('loading-boards');
+      if (txt && !txt.startsWith("key '")) return txt;
+    } catch (e) {
+      // ignore
+    }
+    return 'Loading boards...';
+  },
+
   events() {
     return [
       {

client/components/rules/ruleDetails.js

@@ -5,6 +5,11 @@ BlazeComponent.extendComponent({
     this.subscribe('allRules');
     this.subscribe('allTriggers');
     this.subscribe('allActions');
+    // Ensure boards are available on the client so board selects in the
+    // Rules UI (move/link actions) can list other boards the user has access to.
+    // Without this subscription the select may be empty and users can't choose
+    // destination boards for rule actions.
+    this.subscribe('boards');
   },
 
   trigger() {