PMDG? PMDG VNAV Help

[Jordy Gatoeniksan 0]

Hey everyone, 

I am having a issue with the PMDG 777-300ER.
I have set my route and corresponding heights and speeds
in the FMC and i have LNAV and VNAV selected on the MCP.

Yet when i am reaching my next waitpoint with a new height 
the plane does not change height untill i re-select the VNAV.

As soon as i re-set the VNAV height starts to change..

So why is my VNAV not automaticly switching from 
flight level as pre-programmed in the FMC ?

 

Not sure if i am in the right section
i only had 3 options to choose from to make a
forum topic. 

But if anyone could help me i would immensely appreciate it. 

 

[nealmac 260]

2 hours ago, Jordy Gatoeniksan said:

Yet when i am reaching my next waitpoint with a new height 
the plane does not change height untill i re-select the VNAV.

What do you mean by "re-select"? You say you already have VNAV selected. So why do you need to "re-select" it again? Are you switching it off for some reason?

[Jim Harnes 13]

Well, I would suspect that you are not changing the MCP ALT to the new cruise level.