jitter Character problem with 4.7

Hello, I’m having some issues in version 4.7 that were not happening in 4.5.
I have my character (from rift first person template) standing on an animated cube that flies around the level.
In 4.5 this worked perfect, but in 4.7 the cube jitters and shakes horribly.This happens when playing in vr preview as well as when playing in viewport. I have tried the normal first person template with 4.7 and it does the same. I have brought the same animation into 4.5 and it works perfect.
Is this a known bug and is there a fix or workaround? Let me know if you need more info, Thanks.