Due to Change of User password from Organisation-> Users the existing Backup Plan when ran gave error of Invalid Password. Should the change of passowrd be synced to the computer endpoint which is getting backed up to S3 Bucket. Or will a Creating of a new Backup Plan resolve the issue. Or any other change of configuration will resolve the issue.
Can you post the error? I just tried changing a user password and then running the backup from the agent and it worked. I then closed the agent, changed the password again, and started the backup plan from the portal and it ran. Please reply with the exact error (post an image as well) as well as the exact steps you performed that you think triggered the issue.