Hi @SupportiveEntity I disabled streaming and the landscape loaded… but it was still smaller than the original landscape that I created!
But I think this might have been my own mistake when I tweaked some of the parameters after having the first issue of the landscape missing!
Because I didn’t understand what was going on I tend to just move a lot of sliders in the hope it will fix it 
… but that only works half of the time
Anyway because I wasn’t 100% sure if that’s what I actually did I tried adding single segments of landscape!
So I can add single segments which probably means it was my error!
Learning by doing…
Thank you for your help!
I’m going to need lots of it in future 
The cross section is the bit I added manually to check!
So I just enabled streaming again and now I get this
Its ok I’ll work around it for now since I kind of know where to look now… but it is weird though…