Dragging foliage to Foliage editor freezes UE4

Im using UE 4.10.2. Every time I try to drag something into my foliage editor, UE just freezes for a couple of minutes and i cant even close it down. Help pleasee

Hey ,

Thank you for the response but i think i fixed it. Its all working fine now, it rarely freezes now but when it does its only for like 10 seconds. Thank you for your response though, im very gratefull.
Have a great day.

Hey Daniel Robertson,

Would you provide a copy of your DxDiag(System Spec’s). Does this only happen with a specific mesh or does it happen with any mesh? Does this happen in a new blank project using 4.10.2?