This bug exists in Logos Bible Software 6.11 Beta 5 - 6.11.0.0017 (32 bit) but in the stable 6.10 version as well. It has been reported in this thread: https://community.logos.com/forums/t/125023.aspx
In affected bibles, when "One verse per line" is selected, only bible text will be displayed, pericope headings etc. will be suppressed regardless of the "Non-Bible text" selection

(EDITED:)
Currently known affected bibles:
- probably all PB bibles (regardless of language, such as SENT and ASV; even if freshly compiled with L6.11 beta 5, which I tested with NeÜ),
- Authorized Version
- Luther 1984 (German language)
- NA27 (red LOGOSNA27 Greek NT)
(not affected: NIV 1984, NIV 2011, NRSV, NRSVCE, HCSB, ESV, LEB, NABRE, NASB, NET, KJV 1900, NKJV, The Message, Good News Translation, La Biblia de las Americas [Spanish language], Menge-bible, Schlachter-bible, Einheitsübersetzung [all three in German language], blue NA27GBS w/ apparatus, NA28, NA28GBS w/ apparatus, Byz 2005 [Greek])
As an example, see the following picture of three Greek New Testaments, all set to display "One Verse per line" and including "Non-Bible Text" (i.e. book, chapter, pericope headings as fas as contained in the bible). The latter is broken in the left bible, which means it's affected by the bug.

Another Example: AV (affected by the bug) vs KJV and NKJV (both not affected)

Note that display of "non-bible text" works in all affected bibles as it should when "one verse by line" is deselected.
Toggling display of "Bible text formatting", "Chapter/Verse Numbers" or "Footnote Indicators" where present has no effect on this i.e. is unrelated to the bug.