Android playstore pusblishing: no supported devices

Hi all,
I pusblished my app for internal testing. The app is published now, the
link for the test-group is working but no device is supported! Even the
device I developed on [Blockierte Grafik: https://www.android-hilfe.de/styles/default/xenforo/clear.png]

First part of the gradle file:
... compileSdkVersion 28 defaultConfig { applicationId
"com.chillservices.schadensmeldung" minSdkVersion 23 targetSdkVersion 28
versionCode 2 versionName "1.1" testInstrumentationRunner
"android.support.test.runner.AndroidJUnitRunner" } ...

First part of the manifest-file:
<uses-feature
android:name="android.hardware.camera2"
android:required="true" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<application ....

I developed it mainly with a Samsung A5 2017 und it worked fine. I found
it at "all devices" and there also was mentioned that this device is
not supported.

Any idea what could avoid that all devices are not valid?

Best regards
Robert