When using ShipStation and PrintNode for shipping label printing with Pio, there have been occasions when the labels have been printed in the wrong direction.
The most common reason for this is related to how the PrintNode software was installed. PrintNode can be installed in two different ways: as an application or as a Windows service.
It is recommended to always install PrintNode as an app (default), as this will use the current printing setup of the PC user.
If PrintNode has been installed as a Windows service, please try to uninstall and re-install using the default setup as an application instead.
More details can be found here: https://www.printnode.com/en/faq#q15