Does anybody know how to fix this issue? I’m talking about the levitating feet. The root is meant to go down as the character bends the knees but it doesn’t. It’s been bugging me for quite some time and right now I can’t really go forward with the progress without fixing it.
Your root bone should be on the floor (usually at 0,0,0). You currently have it at the pelvis. You should have an extra bone from the ground up until the pelvis bone. Take a look at unreal’s default characters for reference.
Doesn’t seem like it 
Look at the segment regarding “Root Bone”
I did. I believe I have done it the correct way though. The root is at (0,0,0) and it’s the main bone.