It seems that is some kind of feature: What is ItemStatePredictedEvent? - #2 by Kai
They say that “autoupdate” is now cleverer than before…
I’ve done some tests and if I force autoupdate=“true” on my switches then the items changes when updated from OH, like in OH 2.3.
Anyway, it would be nice to know a bit more of this subject.
Hope it helps,
Manuel