While I was reviewing the changes for Pillagers, I found that Pillagers will attempt to go after the player like normal but Pillager Capitans specifically ignored me even after hitting them. This all happened when I was in Android. I do not know if this bug effects other platforms.

Video: https://drive.google.com/file/d/12Vn0GU4YjR8OzTIcdDp75vCqafeog4hQ/view?usp=drivesdk

Edit: Was too late to find out that this issue was already created. Please see MCPE-44987 for the issue being tracked right now.