Database connection issue

Good morning ladies & gents,
Suddenly I’m having strange database connection issues
Could not authenticate the user although store the credentials and reused them trying to refresh the connection (edit connection).
Here is the weird part, here is the error:
An error occurred while connecting to the database:
Connection attempt failed: SQLSTATE[28000] [1045] Access denied for user ‘bwwvmysc_MP_bwwalker3’@‘172.16.0.5’ (using password: YES)
I’m not using this user! I created a new connection with user ‘bwwvmysc_MP’ and it generates successfully but when running it in dev mode I still get the above error with the wrong user!.
I did select the new connection in sec_Login.
Any ideas what might be going on?
Thanks

RESOLVED
Although I had applied the new connection to all the applications the Log Module did not update. I had to refresh that module manually and now everything seems to be working again.

I still had several apps that were still receiving the same error message.
In those apps I had to remove the log scheme and regenerate. Then reset the log scheme and regenerate and deploy.
Now I believe I am running again 100%.