[MarioL]

You need to move the static rules above the Hide rules.

Edited to add this:
I usually create a group with all "my" networks (assuming I don't want to NAT between my own networks), then I configure a rule to avoid NAT like this (it's my first rule):
All my networks | All my networks | any | = | = | =

After that one I have all the static NAT rules. I always create them automatically when possible, because I think that is "cleaner".

In the end I add a manual hide NAT rule which goes something like this:
All internal nets | any | any | Hide fw | = | =

I don't like the automatic Hide, because of all the extra rules it creates.