Bug Graphic Raycaster not work after animation

Hello. I have an UI animation, which will disable Canvas of a pop up after alpha of Canvas Group decreased to 0 in order to improve performance.



However, UI objects cannot detect on click event after I rewind the animation. And after I disable and enable the Canvas through Inspector, the problem is gone and I can click on the buttons again. Is it a bug of Unity Editor or I have set something wrong? My Unity version is 2021.3.7f1.