This post is the identical issue as posted by “lordmuz”
All orders, regardless of payment method display Zip – Own it now, pay later
We also have Version: 2.3.5 and every and all orders show this issue even if before the plugin was installed.
In the dashboard Order Details page under PAID displays: DATE via Zip – Own it now, pay later
Processing and Completed emails and PDF Invoices display: Payment method: Zip – Own it now, pay later
PDF Invoice: