Since Sencha Cmd 4.0.0 I can not build app for Android (sencha app build native) in Release mode without my-keystore.keystore and password written in packager.json, because of jarsigner is launched during building app.

However, the application is not signed correctly. I have to rename myapp.apk to, delete META-INF folder inside and sign my app with jarsigner (with the same parameters like in packager.json) again (and run zipalign).

Anybody with same problem?