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 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?