I have prioritized Waltke/O'Connor Intro to Hebrew Syntax, and Jouon/Muraoka's Grammar, and no other Hebrew syntax/grammar books. These exist in a Collection titled Hebrew and Semtics. I have rebooted Logos. When my guide is run for a verse, my prioritized books do not show up at the top. Rather, you can see Gesenius there in first place before citations from Jouon. Is non-respect of prioritization expected behavior?
Mac, Logos 45.0 beta 1 (for which there are no release notes.)