We have a layout that has worked fine for years. It stopped printing one field. I am pretty certain it worked in 12.01. If not we have some very unobservant workers.;-)
Mac OS 10.7 10.6.8
The field has a go to related record button attached to it.
The field is in a portal row and not touching any elements of the portal
The field shows in preview - both portrait and landscape
The field prints in portrait
The field does not print in landscape.
Recreating the layout without copying any of the prior elements has the same problem.