There is an additional label getting printed after every Royal Mail label that says 'BLANK PAGE' at the top:


Why this occurs

The extra label will only print in the following scenario:

- Duplex Printer option is enabled in Printer config

- The label is printed to either PDF, or to a regular thermal printer that does not support duplex printing

How to stop printing the extra blank page label

- Duplex printer setting will need to be disabled for the user who is printing (or for the Default setting) via > Shipping > Integrations > Royal Mail > Printer: 

- An actual duplex printer would need to be used that will support printing on both sides of the label, and the label would need to be printed directly to that printer using Virtual Printer client.