Do you mean it shows installed via client activity (appevent)? Check the client connect log to see if it's eligible and vulnerable for the patch. With OVCCM Patch Manager if a client isn't vulnerable then it won't show as out of compliance.
I mean, when I deploy certain patch from OVCCM console to a targer computer I can see small blue OVCCM icon appear on targer computer down right but when I check version of that program on targer computer being patched, there is no change. It still shows the same old version. The program isn't really updated on target computer, although everything looks fine with status "installed" in OVCCM console.