Awhile back I could create and print envelopes with no problem. My old saved envelopes still work fine, but new envelopes have the address rotated 90 degrees.

My LibreOffice version is 6.1.6.3 running on a Mac Mojave OS 10.14.5. Is this known problem or have I just not found the right correlation of settings?

… or that could be the third option: that’s unknown problem needing a bug report?