Hey, That’s awesome it’s working in 4.5 but I’m also having this issue with ue4.10.4 and I’m using a mac. My shader works perfectly when it’s not active in the level editor viewport and accepts all the values given into the shader but when I hit the run button so walk around the scene it breaks and makes the location of the pawn go to zero. Is there any work around for ue4.10.4 ? (I can only work on ue4.10.4 because that’s the only version where leap motion is stable for macs) Thanks in advance! 