Motion Tweens Rotate Incorrectly when using Skew in Free Transform

I am attempting to use a motion tween (which Honestly I should have used a classic tween in this instance instead I know but let me finish). I create a keyframe at the end of the tween where I want the symbol to stop, and use free transform to rotate stretch and skew the symbol to the shape I want it. However, while rotating and stretching are working fine, skewing the symbol causes the tween to completely bug out, with in between frames having the symbol rotated to a completely different position, stretched further than any of the keyframes in the tween, or even entirely flipped horizontally. I assume that this is caused by a setting I accidentally flipped, but I'm not familiar with all the settings so I have no idea how to flip it back. I'd like to have this fixed, since even though I've now discovered the wonder that is classic tweens, I still want to be able to use motion tweens when need be.