What's up with many Real Tracks not sticking to the chords I entered ?

Ex: Guitar, Acoustic, Strumming AcRockBright Ev 120

more often than not it doesn't play straight major / minor chords as entered, but all sorts of creative open string extended voicings, making it kinda pointless to use for a concrete arrangement idea

Repro : use on straight "a minor", solo track and be amazed, this stuff might sound good in one very specific song but it clashes with everybody else (not to mention a given chord sequence) like there's no tomorrow ...

- user error ?
- installation error ?
- default behaviour ? (in that case please file under improvement request !)

Thanks,
Rhino