Edge Add-on listing displays stale screenshots since v4.0.4 despite repeated replacement (m2g-tools)

[kgm-thrs]

Summary

The store listing for my extension m2g-tools (ID engoipjoadjcoecieglfhmldknekkidg) continues to display the original screenshots from version 4.0.4 on the public page, despite the screenshots having been replaced in every submission since approximately version 4.4.

Public listing URL: https://microsoftedge.microsoft.com/addons/detail/m2gtools/engoipjoadjcoecieglfhmldknekkidg

Details

• Currently published version: 4.7.1
• Next patch (4.7.2) is ready locally but I am holding the submission until this is resolved (otherwise it would be the fourth identical attempt against the same issue).
• All six screenshot slots have been individually replaced with current images (1280x800 PNG).
• The Store listing has only one locale (English - United States), status "Complete", so this is not a locale-propagation issue.

What I have tried

• Replaced all six screenshots in the Store listing section of each submission since ~v4.4.
• Verified the listing draft shows the correct new screenshots before submitting.
• Cache-bypass tests on the public page: Ctrl+F5, InPrivate window, different network - all consistently show the 4.0.4 screenshots.
• The "Duplicate these screenshots for all languages" link in Store listings is unresponsive on click (no network request observed). Since only one locale exists, this is moot for my case but may be a separate UI bug.
• I tried emailing ext-mktplc-support@microsoft.com (which used to be the documented contact) - the message was rejected with 550 5.4.1 Recipient address rejected: Access denied.

Browser console output on the Partner Center Store listings page

Account / Listing details

• Microsoft account: nik.gruber@tsn.at
• Extension name: m2g-tools
• Extension ID: engoipjoadjcoecieglfhmldknekkidg
• Currently published version: 4.7.1
• Locale: English - United States (single)

Request

Please investigate why the public listing is pinned to the v4.0.4 screenshots despite repeated replacement in published submissions. The listing data in Partner Center appears correct; the public rendering layer is serving stale assets. This looks like a backend cache or asset-pinning problem.

Guidance on next steps before I submit version 4.7.2 would be appreciated.

Thanks.