A format is opened with ^XA but never closed. A printer keeps waiting for more data; the label may not print until the next job arrives.
^XA^FO50,50^A0N,40^FDHELLO^FSFinding: ZPL0002 · line 1:1 — Missing ^XZ — the label format is never closed
Open the broken label in the editor →
End the format with ^XZ. The quick-fix appends it at the end of the document, the only place where the intent is unambiguous.
^XA^FO50,50^A0N,40^FDHELLO^FS^XZOpen the corrected label in the editor
ZPL0001 Missing ^XA · ZPL0003 Nested ^XA · ZPL0004 ^XZ without ^XA
npx labelixa validate "labels/**/*.zpl" lints your files and prints this page's address next to each finding. /docs/cli