Heyo. I'm used to using vertical tabs with no swipe navigation, and while I could enable both previously, I can't now.
Essentially: I open up settings; un-tick horizontal tabs and/or swipe navigation; ABB tells me to restart; I press the offered restart button; ABB closes and auto-reopens; and neither of those settings changed.
Weirdly enough, setting the toolbar to display on the bottom DOES work.
Any help is greatly appreciated!