Rig Making - Deformers Affect Previous Drawings on Timeline [TIME SENSITIVE]

I am currently creating a rig for school and I am almost done, but I am having issues with starting the turn around. The front view works perfectly with all its pivots and deformers, but when I start shifting everything over (on a different keyframe on the timeline) to do the 3/4 view, the evelope deformers started working wonky. While anything that has a curve deformer stays in the position for that one keyframe, everything that has an envelope deformer is affecting all the keyframes behind it.
Anyone have any idea what’s going on and how to fix it? This is a bit of a time sensitive question so any and all ideas are welcome.