i have found out its the collisions, i found this out by trying different things 1 i exported scene from Maya LT and it done the same thing until i changed the collision to complex and it all runs fine. you just do not have this option in the “import into level” in your editor or not that i can find.
Any other way of doing this? as i do not like the idea of the whole map to be one big mesh. i like the idea of the import into level as it will do one blueprint for it but all single mesh files you can edit and change.
Kev