Calling startService from singleInstance activity throws IllegalStateException app is in background exception

Question

I'm getting the following error while calling startService from an activity.

Caused by java.lang.IllegalStateException
Not allowed to start service Intent { act=com.myapp.action.STOP_SERVICE cmp=com.myapp/.services.CallService (has extras) }: app is in background uid UidRecord{78014ac u0a419 CEM bg:+3h34m41s706ms idle procs:1 seq(0,0,0)}

My app is not in the background, but the activity is running in singleInstance mode

        <activity
            android:name=".activities.CallScreenActivity"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:label="@string/title_activity_call_screen"
            android:launchMode="singleInstance"
            android:screenOrientation="portrait"
            android:showOnLockScreen="true"
            android:showWhenLocked="true"
            android:taskAffinity="com.something.call"
            android:turnScreenOn="true"
            tools:ignore="LockedOrientationActivity"
            tools:targetApi="o_mr1" />

Service

       <service
            android:name=".services.CallService"
            android:enabled="true" />

This crash happened only a couple of times for few users(android 11). I was not able to reproduce it with my test devices. How can I avoid this crash without changing the activity launch mode? Thanks.