Catalog Resync stuck

Shopify catalog resync appears stuck for 15+ hours

My Shopify integration is enabled, and all products are synchronized into Klaviyo's catalog.

However, three recently published products are missing from their Klaviyo collection category even though they are correctly assigned in Shopify.

I initiated a refresh of Collection: New Arrivals yesterday afternoon. It has displayed "Updating category..." ever since.

Attempts to refresh other catalog data now produce the message:

"A catalog resync is currently in progress. Only one catalog resync can be run at a time."

Resyncing an individual product also produces a red error notification.

Is there a way to check, cancel, or reset a catalog resync that's stuck in progress? I'm using the Shopify integration and do not have access to paid support.

The affected category is Collection: New Arrivals, and the missing products are:

• How I Show Love Tee

• Don't Make Plans Tee

• Don't Need a Hobby Tee