Starting from 13 Jul 2018
The Title “Tax Invoice”, Invoice date, due date, invoice number, our company name, description, qty, unit price, tax, amount, total
Read this bug report to see if it describes your problem: 1st PDF in session renders incorrectly - #10 by Tut. If so, the problem is known and a fix is pending. If this does not describe your problem, please provide as much additional detail as possible about exactly when this occurs and does not occur.