I have recently made some Custom Labels with Zebra ZPL and were working fine for about a week. They are gone from the Menu now:
and the /Label layout data source ID/ dropdown is greyed out blocked.
There should be an /Items/ option on the /Label layout data source ID/ and more options in the /Label layout ID/ for /Items/.
Zebra printers are networked (printing fine when test print from PC), and the Document Routing Agent is running as a Network Service.
What am I missing?