Character is floating and tip-toeing instead of walking normally?

Hi all,

I’m having a slight issue with a character I’ve rigged and animated. When imported into Unreal, it appears to be floating slightly and tiptoeing instead of the feet hitting the ground normally.

Here’s what it should look like

But in Unreal…

Anyone know whats going on here? And more importantly, how to fix it? Would really appreciate it. Been super looking forward to bringing my mecha to life in Unreal.