Android Studio - Keystore was tampered with, or password was incorrect

I had a similar problem while updating my app. The keytool was not reading the correct keystore file and instead pointing to an older keystore file that I created months ago and not used. Searched for some solutions online but didn't find one. Almost gave up but I thought about cleaning the project by clicking Build then Clean Project. This last resort worked for me.

Apparently I just found another post posted few months ago that solved my issues I struggled for days...

Simply need to change the keystore and key alias password to be the same for it to work. Though I still don't know why the same keystore worked before when I was publishing updates; then not working anymore until I changed the passwords.

If anyone has answer for that, please let everyone know!