Hydraulic failure failure...

No, not double written...I was working through all the failures that PMDG737 has build into it, now that I am rather confident that I can fly the 737NG by the basics.But some of the failures do not seems to work.Most of them are 'just' lights going on (glogged fuel filter: bypass light going on)However, the hydraulic failure list, doesn't seem to work.Failing both the eng driven as well as the elec drive hyd pumps of one of both systems or even all systems doesn't give an hydraulic problem.Is this known or a problem on my side only? (I tried it with the 800 version)Birdhit: what is suppost to happen?... all depends on where it hits right? but is there any effect to it?All a few questions to get some more insight into the failure options of the PMDG737NG.I must say I like the feature and hope that it is largely expanded in the 744 version.(a random failure option of any system, not just a particular one)But, I must say, I presume it is already taken into account for the 744.Leaves me with the few options on the 737 to fail a few things.I like it but it sure is incomplete.regardsTeeloo