Amazon removed 228 of our active listings that were in good standing

Has this happened to anyone else? One day 228 of our listings were deleted. We opened a case and Amazon support confirmed "your account is in good standing with no active policy violations, restrictions, or enforcement actions, and no Performance Notification was issued related to this removal."

The case is still open in 'Work in Progress" status as we requested an explanation of what happened and possibly reimbursement.

"I transferred your case to the dedicated catalog and technical support team for a root cause investigation. They will review system logs, API and feed activity, and any third-party application actions to determine what triggered the removal. Regarding your reimbursement request, per the Amazon Business Solutions Agreement (Section F-7.4), compensation for lost sales during listing unavailability is not within scope."