Distance To Nearest Surface flickers

Hi
I am triying to figure out what cause this issue with Distance To Nearest Surface node
This issue occurs very randomly, sometimes it can be seen from far away but it also happens up close

Here is material

https://forums.unrealengine.com/attachment.php?attachmentid=125519&d=1484743079

Im having the exact same issue. Were you able to figure this out?

Do you think this can be a problem with your landscape’s LOD? Maybe playing with ‘LOD Distance Factor’ helps.

For me it happens with any mesh that has a material using DTNS. i DO think its an LOD issue but it seems like its not just related to the landscape. perhaps its LODs on the distance feild?