Hi, I figured out what was happening, my Stencyl game which was v1.0 was saved as v1.0, when I began work on v1.1 I saved a new Stencyl file named v1.0, however this puts the APK Version Code back to 1, you can check the version code by opening AndroidManifest.xml which can be found at C:\Users\you\AppData\Roaming\Stencyl\stencylworks\games-generated\YourGame\Export\android\bin. I went back to the v1.0 file, did the 1.1 changes, re-published and Google Play was happy with the version code. I hope this makes sense!