I had a legacy certificate that was automatically created by XDK over a year ago and I have used that certificate many times to publish and update my game on the Android Playstore. I recently upgraded to XDK 3400, which forced me to upgrade my legacy certificate. After building with the new certificate and uploading to the Playstore, Google reports this error:
You uploaded an APK that is signed with a different certificate to your previous APKs. You must use the same certificate. Your existing APKs are signed with the certificate(s) with fingerprint(s):
Why is the upgraded certificate different? How do I revert or use the legacy certificate?