Order Status Not Updating

Hello all –
Recently started noticing an issue with my Woocommerce stores where the order status is not updating to “completed” once an order has shipped. I have the Woocommerce Shipment Tracking plugin installed, and my third-party fulfillment provider (Printful) returns tracking numbers via API integration. When that tracking number is received, the order status gets updated to “completed” and the relevant notification is sent to the customer. This has worked fine in the past, but seems to have stopped. The tracking information is being returned as expected, but then nothing happens. Has anyone else noticed this lately? All of my plugins are up-to-date, and am running current versions of WP.

Anyone have any suggested workarounds? We maintain about a dozen sites, hundreds of orders per day, so having to bulk edit order statuses manually is a bit of a nightmare. I’ve looked at Woocommerce Order Status Control plugin, but it’s too limited for our purposes.

Thanks!