Display of cut walls issue

[spashed]

It appears that sections struggle to display cut walls correctly when at angles.
I am having major display issues with some curved and regular in place walls, as well as standard floors.
see attached pic

Any advice on this?

regards

calum

[spashed]

Nope,

Jumped in too quick there.
Seemed there was a imported surface sharing the some position. hence the hatch issue.