New Lock screen notifications

Apr 11, 2014
I use for a long time NiLS to display notifications on lock screen, but since the two last updates of MIUI (since 4.6.20), the screen turns on but notifications are not displayed, As I said all worked fine in prior versions of MIUI with KK 4.4.2 (i.e. 4.6.13).
I've tried other notifications apps like Floatifications and also doesn't works, so I think that in the last two updates. MIUI doesn't allow draw on top of the lock screen, I don't know but not sure if is a bug.
Does anybody uses apps to display notifications in lock screen?, Does anybody has a similar issue with last versions of MIUI and got solved?
Many Thanks.