Worldpay has acknowledged a change was made to all merchants processing EBT that affect refund capabilities with NCR Secure Pay using the NCRVP processor platform.
They are currently working on a resolution. CP Support will update this News Article with any updates as soon as they are provided.
At this time, the workaround is to break down the total refund amount into smaller amounts ($100 - $200) as needed / accepted by the processor.
Worldpay to issue a fix for this on 11/11/26 (no specific time was given); please notify CP Support and the Payments team if this issue persists after this date.