Error in uploading an new version of my app on Google Play Console

[peterjamesleniq]

I got the following message when I tried to upload a new version of my app, just minor things.
Are we able to upload newer versions or do we have to go through he whole process again when making improvements? thanks

[martint]

[Solved] Android Publishing Error: App Bundle signed with Incorrect Key

Hello everybody, I’m trying to update an app in the store, i managed to send the .aab file, but know it shows me this error i have never seen before. 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. Your App Bundle is expected to be signed with the certificate with fingerprint [etc…] I have always & only used Thunkable, the last update of the app is about 8 months ago. Someone experienced this issue before…