todays updates (2.28.0ubuntu4) doesnt seem to help the issue (was the fix reverted ?!?).
*photon* and some of my pdfs still will fail to print with ps "error undefined command 0a" on my brother dcp-8065n - otoh okular will print them without issues.
laymans question: doesnt this hint that indeed evince/gtk/gnome etc is faulty and neither gs nor cups ?