Unreal Engine crashing while baking with terrain

Hi,
I am trying to build an architecture walkthrough for VR. I imported all my meshes from Max as fbx files. For the first bake I had an issue with black weird shadow spots but by unwrapping the UVs and bumping up the LM res, I was able to get a beautiful bake for my house. I recently tried to add a small-ish terrain for my house and unreal kept stopping at 2% bake and crashing the scene every time. Any help would be appreciated, thank you.

What is the size of the landscape you have in the level and what is its static lighting resolution set to? How much RAM do you have?

Hi Jacky thank you replying. I am currently away from my pc but as I remember (and I will send better info when I am at work) :

Scale: 15 15 15 and thats (xyz)
Light rest: It was the default so I am tempted to say 32 or 64
RAM: 32GB

Thank you again