Can not start alpha/internal android testing before publishing app as production version in Play Store

yesterday we are created a new app in Google Play Console. Then we upload a new release APK into Alpha-Track, added emails for test-group and waiting already more then 24h. Nothing happen. We can't see any opt-in link for testing...

Today early morning I created a new "internal"-track for testing (in google docs stay that the APK-file will be available for testing after 10-15 minutest after publishing)...

We waiting already many hours and nothing happen...

What we did wrong or maybe something missed in configuration to start testing before publishing app in real store?