Missing Invoices not Syncing

For weeks now still waiting for support to get this sorted.
The response: “I’ve reviewed your invoices and there is currently a report opened with the dev team on syncing invoices to Xero. I’ve added your case to that report and have resynced the outstanding invoices.”

I manually go into the invoice and hit sync, it works.
Trying to sync all invoices that are missing from Xero, no dice.

Extremely frustrating to say the least.

Hi JCPIT, you currently have a case open with our development team on this- so it may be up to them to resolve but I will leave the thread open for others to add comments if they have had similar experiences.