how do I change a Button State - Pointer Up/Down button while holding another down?

Hey Guys i need help,

i have two Buttons, Button Left and Button Right.

Each Button has an Event Trigger with Pointer Down and Pointer Up
-> my Player can walk in both directionn without any Problems

My Problem is:
when i press and hold one Button like Button Left, my Player walks left BUT if i still hold the button pressed and slip over to the walk right Button it doesnt work and the Player still walks left until i make the Pointer Up and down with my finger.

Do you have andy Ideas how to change the Button while pressing?
Is there any way to make this work with this Methods?
Should i swtich to controll the Buttons over touchcount, gettouch [....] ?

Thank your for your help!

 

My solution was to combine the OnPointerDown and OnPointerUp with the OnPointerEnter and OnPointerExit in my Script.
With that tools i checked all possible States from Buttons and created the movement for the pressed Button slide move.