Suggested title: Screenshot uploads disappear and block submission: “Your changes could not be saved”

Screenshot uploads cannot be saved; app submission blocked

App: Field Forged: Base Line Apple ID: 6807607852 Version: iOS 1.0 Localization: English (U.S.)

Earlier screenshot uploads displayed red blank placeholders. After retrying, the red indicators cleared, but the screenshots disappeared when I reopened App Store Connect.

“Add for Review” reports: “There are still screenshot uploads in progress.”

Uploading a single screenshot into iPad → 13″ Display now reports: “Your changes could not be saved. Try again later.” The section shows 0 screenshots.

The problem persists in Safari, Chrome, and Chrome Incognito after signing out and back in.

The tested files are RGB PNGs without transparency, measuring 2048 × 2732 or 2732 × 2048—accepted dimensions for this section.

I've tried other remedies/solutions from this forum as well to no avail. Thanks in advance.