Background Gradient not working on Button and MaterialButton [duplicate]

Question

I have applied gradient along with round on Button

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <gradient
        android:angle="0"
        android:centerColor="#F82634"
        android:endColor="#FA3B6F"
        android:startColor="#FA7D6F" />

    <padding
        android:bottom="7dp"
        android:left="7dp"
        android:right="7dp"
        android:top="7dp" />

    <corners android:radius="8dp" />
</shape>


By applying `android:background="@drawable/gradient_button"`

Padding and Corners are shown in xml whereas gradient start and end color not applied. I have also tried backgroundTint = "@null" but still same issue. I have replace Button with MaterialButton same issue occur

But when I use AppCompatButton it works perfectly.

Can someone guide me what am i missing

<Button
        android:id="@+id/applyNowBtn"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/gradient_button"
        android:text="Apply Now"
         />