Notarization stuck "In Progress" for days — and earlier submissions vanished from history without ever completing

Hi, Developer ID notarization from our team has been broken for two days. Submissions sit in In Progress for hours and never finish, and an earlier batch disappeared from notarytool history entirely without ever reaching Accepted or Invalid. This is blocking a release.

Team ID: UFB3325L3Q (Shenzhen Minimal Future Technology Co., Ltd.)

First batch (submitted 2026-09-09 ~02:15 UTC) — now VANISHED:

• CowAgent-2.1.8-arm64.dmg — id 4df22081-b3dd-41fe-b6d5-cebbd3ab40ff
• CowAgent-2.1.8-x64.dmg — id 6b2bfdee-1b56-4da5-a107-c6184c5695a7

These two sat In Progress for 8+ hours, then silently disappeared from notarytool history. They never returned Accepted and never returned Invalid — the records are simply gone.

Second batch (rebuilt & resubmitted 2026-09-10 ~04:36 UTC) — currently stuck In Progress:

• CowAgent-2.1.8-arm64.dmg — id 8fb34878-ebf2-4efc-8366-223169dc053a — submitted 2026-09-10T04:36:33Z
• CowAgent-2.1.8-x64.dmg — id 5f306801-32fc-42e1-987b-6c0799bac510 — submitted 2026-09-10T04:39:39Z

The packages are correctly signed. Local verification passes every check:

• codesign --verify --deep --strict returns "valid on disk" and "satisfies its Designated Requirement"
• Hardened Runtime enabled (flags=0x10000(runtime), Runtime Version 14.0.0)
• Authority=Developer ID Application: Shenzhen Minimal Future Technology Co., Ltd. (UFB3325L3Q), full chain to Apple Root CA
• Secure timestamp present
• All embedded Mach-O binaries (Electron frameworks/helpers plus ~180 PyInstaller backend binaries) are signed inside-out

These packages are essentially identical in size and structure to our previous release 2.1.7, which notarized within minutes. In fact 2.1.8 is about 1 MB smaller than 2.1.7 (arm64 dmg 214.2 MB vs 215.3 MB; x64 dmg 223.3 MB vs 224.5 MB), so this is not a large or unusual upload.

Our previous releases from this same Team ID (2.1.7, 2.1.7-alpha, and a related app) all notarized within minutes and were Accepted. xcrun notarytool log <id> returns "Submission log is not yet available" for the stuck ones (processing never completes). The Developer ID Notary Service system status shows green (no events) the entire time.

The combination of (a) submissions vanishing from history without a verdict and (b) every new submission from this team getting stuck, while the packages verify cleanly and match a previously-accepted release, looks like an account-level backend issue rather than a package problem. Could a DTS engineer please look at the backend logs for Team ID UFB3325L3Q and either release the queue or tell me what is blocking these submissions? Thank you.