I had problems too, but I found the solution in the most absurd way possible. First, you must download Android Studio, create a project with the same name / ID. If your project is called johndue.due.com, Androis Studio must have the same name. When creating a new project, go to "Build" and look for the option to create the "Bundle Sign", remember that you can use your Construct 3 Keystore in this option. In the menu, you must fill in the KeyStore name (Alias) and passwords. You can debug or re-launch the .aab file. We will need this file in order to open the possibility of launching the application. Attention: if you created an application version, delete everything and start from the beginning. After creating the .aab file, upload it and just send it to Production. When reviewing, make sure that there is no conflicting version of this file. If so, you can change the codes in Android Studio (just look in the folders and files within the program, it is very easy). OK, that done, it will announce that everything is ok, without failures or problems and that you can publish your application. Publish, and as soon as everything is right, then you can put your application in the library and publish it too. In this case, if there are notices, they will no longer prevent you from publishing the application. I hope I helped you, as I spent days trying to solve the problem (with a customer waiting for my service). Cheers to all!