Can't Animate Collider, stays stuck

sayan

So, when my player crouches, I wanted to animate its capsule collider to shorten with it. I'm using a mixamo crouch animation and initially, the collider animation was working fine. But I do not know how, it just decided to stop working, now I cant modify the collider size through the animation window, it just remains in the previously assigned values. Nor can I disable or enable it through the animation window. from my understanding of my own code attached to it, there is no mention of collider and I'm using the default editor layout. If you could help, it be great.

See that 6.58 there in the Animation window, I cannot alter it when the recorder is on.