Ok, I started to test out move silently and found something rather unexpected!
It seems that there is a full extra turn delay between when you do something and when it affects your silence status (at least as it is displaying on the interface).
This was throwing me for a loop, because I would for example take a step towards a stationary guard (still silent, but it should have just disappeared I think), wait a turn (now I just lost my silence!), move back (silence is back), wait a turn (hey there goes my silence again!), wait one more turn (now I'm silent again)...
Tested in 1.03. Can we please have this fixed?
Thanks,
Farwalker