FlutterFlow AI Agent / Codex on Windows fails before compilation with SSLV3_ALERT_BAD_RECORD_MAC

[cmgprime]

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Current Behavior

In FlutterFlow Desktop, the Codex AI Agent cannot complete a focused no-push
FlutterFlow CLI validation for an existing project.

Command:
flutterflow ai validate dsl/edit_customer_login_sb305.dart

After 208.6 seconds it exits before compilation with:

Network request failed:
SSLV3_ALERT_BAD_RECORD_MAC
(../../third_party/boringssl/src/ssl/tls_record.cc:486)
error 268436476

No compiler diagnostic is produced. No FlutterFlow project entity, source,
Supabase setting, provider, account, or deployment changes.

Expected Behavior

The AI Agent should establish its required HTTPS connection and either complete
the focused compilation or return a normal actionable compiler diagnostic.
A TLS transport failure should not prevent a read-only/no-push validation.

Steps to Reproduce

1. Use FlutterFlow Desktop on Windows with the Codex AI Agent.
2. Open project relay-guard-portal-wg7xci.
3. Run one focused no-push validation for:
   dsl/edit_customer_login_sb305.dart
4. Wait for completion.
5. Observe SSLV3_ALERT_BAD_RECORD_MAC before compilation begins.

Reproducible from Blank

• The steps to reproduce above start from a blank project.

Bug Report Code (Required)

IT4KhvHl8ZdJpbxe0Kr+YPlB/ScXQkB/UIIKlusbQkscCJTuG7lzRc/BQExWXLzgYAhfM2aZ8D8z1vfqi9/yG/VdGyiVGK4+yc9cSTyWTn+QbpihPbrofW1QQORQC26j0cGNvglTPutpLFZi3Tu1fN6RfCbUHrmxIEQzGf+lKdeK2SrDX1iXc2URm05KZDPz

Visual documentation

Flutterflow AI Output:
Exit code: 1
Elapsed time: 208.6 seconds

Workspace binding: relay-guard-portal-wg7xci.
Resolved target mode: existing (existing project relay-guard-portal-wg7xci).
Error: Network request failed:
SSLV3_ALERT_BAD_RECORD_MAC(../../third_party/boringssl/src/ssl/tls_record.cc:486) error 268436476

FlutterFlow_2026-09-19_20-29.md

flutterflow-agent-log-2026-09-18T20-51-39.txt

Environment

OS: Windows 10 Home, build 26200
FlutterFlow Desktop: [enter current version from About]
Codex CLI: 0.146.0
Flutter SDK: FlutterFlow-managed 3.38.6
Project: relay-guard-portal-wg7xci

Additional Information

A separate FlutterFlow update compiled and pushed successfully earlier the same
day: compileDslApp passed, flutter pub get passed, generated-code export
completed, and 21 tests passed. This failure appears limited to the later
Codex/FlutterFlow AI Agent network path.

A related open Codex Windows connectivity issue may be relevant:
openai/codex#43272

No secrets, tokens, or customer data are included with this report.