Android app icon not showing in samsung galaxy gear s3 frontier notification

Question

I created an android application and it sends a notification. The notification in my gear s3 frontier shows only the standard Android icon. There was only my icon in the project and in the manifest, I tried adding an android:logo together with the android:icon, but that didn't work either.
Here is my manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="de.xliquid.appname">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>
    <application
        android:name=".App"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:logo="@drawable/ic_logo_round"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.AppCompat.NoActionBar"
        android:usesCleartextTraffic="true">

        <activity android:name=".NameActivity"></activity>
        <activity android:name=".NameTwoActivity" />
        <activity android:name=".NameThreeActivity" />
        <activity android:name=".NameFourActivity" />
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <meta-data
android:name="preloaded_fonts"
            android:resource="@array/preloaded_fonts" />
    </application>

</manifest>

Any help would be appreciated.