First, thanks for bringing this to P3D4.  This is the earliest after release I've ever bought a product and I'm already on my second long-haul in less than 24 hours in it.
I've been having an issue starting the engines.  I've been starting my flights in the "APU running" state.  I don't touch any of the fuel pumps, hydraulics, etc.  With the engine start switch set to AUTO, I turn the engine 2 switch to GRND but the oil pressure and N2 both don't move, even if I try turning the fuel switch to run.  I just end up loading the "Ready for Takeoff" state after pushback so I have running engines.  (I even tried CTRL+E, which I hate doing and didn't expect to work, but it only started engine 1).  I've been reading over the procedures in the manuals and I'm not sure what I'm missing.