title: GooglePlay - wrong signing key for app bundle
body: <p>I've just now started using app bundles. I've set the two certificates in the <code>App signing</code> section of the dashboard (signing certificate and upload certificate).</p>
  
  <p>I've built an app bundle and signed it with the upload certificate, but when I upload the bundle under <code>Android Instant Apps</code> (which is in fact the reason I switched to app bundles) it says that:</p>
  
  <p><code>Your Android App Bundle is signed with the wrong key. Ensure that your app bundle is signed with the correct signing key and try again: xx:xx:xx:xx.....</code></p>
  
  <p>I've manually checked the SHA-1 of the upload keystore (using keytool in the terminal) and it matches the xx:xx:xx.... it says in the error message.</p>
  
  <p>What am I doing wrong? The app bundle IS signed with the required upload certificate, but google play doesn't seem to like it.</p>
  
  <p>Ideas?</p>