Hi,
After updating to 1.7.6, the "Real Time" setting on the iTween action "Move To" (and possibly others) no longer works as intended. In other words, iTween will no longer animate when the game's Timescale == 0, even with "Real Time" checked.
Additionally I noticed that actions such as Float Interpolate will become much more "stepped" when timescale == 0 and Real Time is checked. Meaning the intervals between updating the result is noticeably longer and not as smooth. I don't recall this previously being the case, though I could be wrong on that one.
If this isn't PM's fault, perhaps it is interacting in some way with NGUI, which I also updated recently. I see a new auto-created GameObject appearing in my scenes called "_RealTime" created by NGUI, which I assume NGUI is now using a different method of tracking time. Perhaps the real time tracking of this script is interfering with PM's methods?