Hello. Using ArcGIS Pro 2.9, but same behaviour on ArcGIS Pro 2.8.x. Windows 10 Pro.
If I print a layout with no map series, the frame I have made is nicely centered on the paper. If that same layout uses a map series, then the layout margins seem to change and the frame gets clipped off. The frame seems to get pushed up a bit and right quite a bit. Same behaviour printing to a Ricoh PCL6 Business machine and to an HP T2600 PS plotter.
In the attached PDF of a scan of my paper prints, the grey line to the far right is a scanner artifact.
Exporting to PDF does not have this issue. Bug??
Thanks