Anyone with a Manny rig for Blender?

So, straight to the point. I’ve been having nothing but issues trying to get the UE5 Mannequin to work in Blender with Rigify and UEFY, the ■■■■ feet keep moving even though they’re not supposed to (video link for reference). Been at it for hours and I’m at my breaking point.
So the question. Does anyone have a UE5 Manny rig for Blender, with all the fancy controls like the Mr Mannequin addon? I’ve been looking everywhere but can’t find a ■■■■ thing and Google’s being everything but helpful…