[QUOTE=violent23;3607134]Yes it does.
Not really sure what is going on here, but Amazon needs to get this sorted. There is no reason the paid books I purchase that are clearly marked as containing such features should lack them when using a supported device.
/QUOTE]
I've run into this problem too. The font weight/size always works, the margin choice is hit or miss. At first I thought it was a KFX/AZW3 thing but it has occurred for me on both. My sideloaded books *never* have the margin choice but I've already set that to my preference in Calibre so it doesn't matter.
It's clear that whatever they did to (partially) imitate Kobo's typography, it is an imperfect kludge and when combined with multiple versions of books on their servers, they (and users) have a mess.
I'm guessing that this isn't something that can be easily fixed by them. The way for users to fix this, of course, is to return to sideloading books and manipulating those features in Calibre. Pain in the butt -- especially compared to Kobo -- but it works.