Recent updates broke custom metadata

I manage a website for a Cub Scout Pack; I have been using “WC Fields Factory” and “Advanced Order Export For WooCommerce” successfully for the last 1+ year. Use case is pretty simple, I need to be able to collect line item detail for certain items that are ordered.

Something happened with plugin updates around 9/9 where metadata is still being collected, and I can see the information when I look at the order info in WC, but the report does not show the custom metadata in the report output. The symptom started around 9/9 because I’ve had a steady stream of orders this month, and prior to that date I see data in the custom field as expected.

I had issues with the way Product pages were rendered around that same time. To fix that issue, I turned off the “Fields Cloning” setting in “WC Fields Factory” — I understand that this likely would have changed the field name. But even if I turn that feature back on, the custom field no longer shows up in the “Custom fields” drop-down on the WooCommerce Export Orders menu.

I can see in the report settings how the field was originally defined:

“Registrant Name – 1”: {
“checked”: “1”,
“colname”: “Registrant Name – 1”,
“label”: “Registrant Name – 1”
},

Is this a corruption issue with my environment, or is this bug introduces by recent versions of WC and the plugins? Any ideas on how to debug this?

Thank you!