diff --git a/Plugin/unraid/pages/scheduler.php b/Plugin/unraid/pages/scheduler.php
index fb52f0a..027401f 100644
--- a/Plugin/unraid/pages/scheduler.php
+++ b/Plugin/unraid/pages/scheduler.php
@@ -4661,21 +4661,42 @@ async function vvSaveArrange() {
     if (!arrayMap.has(primaryArray)) arrayMap.set(primaryArray, []);
   });
 
-  let failed = false;
+  const fail = () => {
+    btn.textContent = 'Error!';
+    btn.style.color = '#f44336';
+    setTimeout(() => { btn.textContent = 'Save Arrangement'; btn.disabled = false; btn.style.color = ''; }, 2500);
+  };
+
+  // Phase 1 — relocations, one atomic call each.
+  //
+  // A cross-array move changes two arrays. Expressing it as two reorderarray.php calls means
+  // a failure between them leaves master.conf half-written: the script removed from its old
+  // orchestrator and never added to the new one, or present in both and running twice. There
+  // is no rollback, and the page still shows the intended arrangement, so the operator re-drags
+  // from a view that no longer matches the file.
+  //
+  // movescript.php does the whole relocation inside one guarded write, so it either happens or
+  // it does not. Phase 2 can then only get the ordering wrong, never the membership.
+  const moves = new Map(); // script → final array ('' = out of every orchestrator)
+  for (const p of vvArrangePending) {
+    if (p.fromArray === p.toArray) continue;   // pure reorder — phase 2 owns it
+    moves.set(p.script, p.toArray || '');
+  }
+  for (const [script, toArray] of moves) {
+    const r = await vvPost('/plugins/varaverk/api/movescript.php', { script, to_array: toArray })
+      .catch(() => ({ ok: false }));
+    if (!r.ok) return fail();
+  }
+
+  // Phase 2 — order and enabled state, per array. Membership is already correct.
   for (const [arrayName, scripts] of arrayMap) {
     const r = await vvPost('/plugins/varaverk/api/reorderarray.php', {
       array_name: arrayName,
       scripts:    JSON.stringify(scripts)
-    }).then(r => r.json()).catch(() => ({ ok: false }));
-    if (!r.ok) { failed = true; break; }
+    }).catch(() => ({ ok: false }));
+    if (!r.ok) return fail();
   }
 
-  if (failed) {
-    btn.textContent = 'Error!';
-    btn.style.color = '#f44336';
-    setTimeout(() => { btn.textContent = 'Save Arrangement'; btn.disabled = false; btn.style.color = ''; }, 2500);
-    return;
-  }
   location.reload();
 }
 
@@ -4905,7 +4926,7 @@ async function _vvFolderDrop(e) {
   const folders = vvGetCurrentFolders();
   const r = await vvPost('/plugins/varaverk/api/savefolders.php', {
     folders: JSON.stringify(folders)
-  }).then(r => r.json()).catch(() => ({ ok: false }));
+  }).catch(() => ({ ok: false }));
 
   if (!r.ok) {
     oldParent.appendChild(srcEl);
@@ -5062,7 +5083,7 @@ async function _vvDoCreateFolder(name, wrap) {
   folders[name] = [];
   const r = await vvPost('/plugins/varaverk/api/savefolders.php', {
     folders: JSON.stringify(folders)
-  }).then(r => r.json()).catch(() => ({ ok: false }));
+  }).catch(() => ({ ok: false }));
   if (!r.ok) { vvAlert('Failed to create folder.'); return; }
   wrap.remove();
   // Add folder group to DOM