Animation not saving key frames on one model but save on the other.

So the issue is I remade a model so that it would be more flexible when animating, the original model can save the keyframes and can be animated. But when I tried to animate the new version it simply doesn't save any keyframes. I have a new animation controller and I've deleted and remade it several times. I'm hitting the record button and make sure it's using the right animation controller. I've tested the previous model and it works fine, the original model can be animated just but not the new one. Both models are rigged and are FBXs. I also reimported the model. Help would be appreciated I really wanna fix this issue.