Nice work. This will make the workflow, a lot efficient! Thanks for posting it here. 
Can we have a tutorial on this. I tried to real time with capsule. But this looks lot more perfect approach.

Great Tutorial , thanx for this :)

Did you turn on the simulation / play mode in Unreal? PowerIK only works if you simulate the physics as if a game was running. If you don't do that, your character walks into the terrain. 

Check out this video for details. He goes into the collision setup:

https://www.youtube.com/watch?v=PMSxTCp0kuQ&t

Hi,

Sorry I don't understand, Could you possibly do a video for this. I have tried everything, but the moment I run the animation in iclone > Livelink > Unreal, my character moves well, good frame rates of 60FPS or more, but the character runs into the terrain instead of following the contour of the terrain and staying above it. For some reason, the power Ik don't affect it. Pressed play in UE and then play in iclone, the character starts to float. If you know how to make this work, can I please trouble you for a video please. 

@Jeasy: The collision is the issue here. You need to set up the trace channel "ground" properly here. Just put your custom channel "ground" to ignore on all categories. Only set it on "NoCollision" and "Block All" to "block". 

So I have followed your tutorial 5 times, put the power_ik Ground node on CCLiveLink_v23 AnimBP as shown, hit link activated in iclone, pressed play on UE, character flys up in the air, the iclone animation is playing but not sure what I am doing wrong now. Could you please do a tutorial without cropping the screen and from scratch as in Transfer character to UE using iclone live link, then setting up in UE 4.25 with Power IK, activating link and running animation Move_Run_M applied to the character in iclone. (Animation is part of the new Artcore Spunky Moves free animation pack). Playing the animation on iclone with Live Link activated and then fix the character in UE 4.25 with full screen showing Please. I am feeling lost. Spent 8 hours today trying to figure out what is happening but am totally lost. Please Help! :(

Going to go through your tutorial again now and start from scratch to ensure I do everything as you have shown. Will come back to you. Thank you.

Tutorial For Feet / Ground IK :

Live Link IK 

No this project is still 4.25. I haven’t cloned it to 4.26 yet. Not sure when that update is coming.