Bug Title: Saving "Invoice in PDF" in the Content > Pages causes an error
Bug Report Date: Sunday, 11 July 2021
Forum URL:
Report By: Joe
Bug Path: Control Panel > Content > Pages > Invoice in PDF > Edit
Confirmed: Unconfirmed

Error: "The page controller is incorrect; please make sure all necessary controller files have been uploaded: (plugins/invoices/invoice_in_pdf.inc.php and plugins/invoices/invoice_in_pdf.tpl)."

This issue exists in 4.8.1.
I confirmed issue also exists on the 4.8.2 demo

Can anyone else confirm this issue?