diff --git a/CHANGELOG.md b/CHANGELOG.md
index 045c069d218..9b98966ed03 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -116,6 +116,7 @@ Docs: https://docs.openclaw.ai
 - Node host/service auth env: include `OPENCLAW_GATEWAY_TOKEN` in `openclaw node install` service environments (with `CLAWDBOT_GATEWAY_TOKEN` compatibility fallback) so installed node services keep remote gateway token auth across restart/reboot. Fixes #31041. Thanks @OneStepAt4time for reporting, @byungsker, @liuxiaopai-ai, and @vincentkoc.
 - Security/Subagents sandbox inheritance: block sandboxed sessions from spawning cross-agent subagents that would run unsandboxed, preventing runtime sandbox downgrade via `sessions_spawn agentId`. Thanks @tdjackey for reporting.
 - Security/Workspace safe writes: harden `writeFileWithinRoot` against symlink-retarget TOCTOU races by opening existing files without truncation, creating missing files with exclusive create, deferring truncation until post-open identity+boundary validation, and removing out-of-root create artifacts on blocked races; added regression tests for truncate/create race paths. This ships in the next npm release (`2026.3.1`). Thanks @tdjackey for reporting.
+- Control UI/Cron editor: include `{ mode: "none" }` in `cron.update` patches when editing an existing job and selecting “Result delivery = None (internal)”, so saved jobs no longer keep stale announce delivery mode. Fixes #31075.
 - Security/Node metadata policy: harden node platform classification against Unicode confusables and switch unknown platform defaults to a conservative allowlist that excludes `system.run`/`system.which` unless explicitly allowlisted, preventing metadata canonicalization drift from broadening node command permissions. Thanks @tdjackey for reporting.
 - Plugins/Discovery precedence: load bundled plugins before auto-discovered global extensions so bundled channel plugins win duplicate-ID resolution by default (explicit `plugins.load.paths` overrides remain highest precedence), with loader regression coverage. Landed from contributor PR #29710 by @Sid-Qin. Thanks @Sid-Qin.
 - Discord/Reconnect integrity: release Discord message listener lane immediately while preserving serialized handler execution, add HELLO-stall resume-first recovery with bounded fresh-identify fallback after repeated stalls, and extend lifecycle/listener regression coverage for forced reconnect scenarios. Landed from contributor PR #29508 by @cgdusek. Thanks @cgdusek.
diff --git a/ui/src/ui/controllers/cron.test.ts b/ui/src/ui/controllers/cron.test.ts
index 223eceb7c94..d8e55589360 100644
--- a/ui/src/ui/controllers/cron.test.ts
+++ b/ui/src/ui/controllers/cron.test.ts
@@ -210,6 +210,7 @@ describe("cron controller", () => {
         deleteAfterRun: false,
         schedule: { kind: "cron", expr: "0 8 * * *", staggerMs: 0 },
         payload: { kind: "systemEvent", text: "updated" },
+        delivery: { mode: "none" },
       },
     });
     expect(state.cronEditingJobId).toBeNull();
diff --git a/ui/src/ui/controllers/cron.ts b/ui/src/ui/controllers/cron.ts
index 72d9ba8a91a..16d84c1933f 100644
--- a/ui/src/ui/controllers/cron.ts
+++ b/ui/src/ui/controllers/cron.ts
@@ -614,17 +614,21 @@ export async function addCronJob(state: CronState) {
     const payload = buildCronPayload(form);
     const selectedDeliveryMode = form.deliveryMode;
     const delivery =
-      selectedDeliveryMode && selectedDeliveryMode !== "none"
-        ? {
-            mode: selectedDeliveryMode,
-            channel:
-              selectedDeliveryMode === "announce"
-                ? form.deliveryChannel.trim() || "last"
-                : undefined,
-            to: form.deliveryTo.trim() || undefined,
-            bestEffort: form.deliveryBestEffort,
-          }
-        : undefined;
+      selectedDeliveryMode === "none"
+        ? state.cronEditingJobId
+          ? { mode: "none" as const }
+          : undefined
+        : selectedDeliveryMode
+          ? {
+              mode: selectedDeliveryMode,
+              channel:
+                selectedDeliveryMode === "announce"
+                  ? form.deliveryChannel.trim() || "last"
+                  : undefined,
+              to: form.deliveryTo.trim() || undefined,
+              bestEffort: form.deliveryBestEffort,
+            }
+          : undefined;
     const failureAlert = buildFailureAlert(form);
     const agentId = form.clearAgent ? null : form.agentId.trim();
     const job = {