New products are not syncing with Xero

The integration currently requires that a product be added to an invoice before it creates the product in Xero.

After the invoice syncs with the new product, you should see the product in Xero.

Thats not my experience.
When you create a product, the Linked Xero Item always shows up in the product straight away.
Only in the last few days has this not been happening.
Can you please recheck this.
thanks

Neil