Database access denied after conversion to utf8mb4

Support & Bugs
1

As suggested by Matomos system page, I tried to convert the database to utf8mb4. Now I am stuck with “database access denied”.

I performed the following steps:
-Converted the database to utf8mb4 with
console core:convert-to-utf8mb4
which seemed to work fine. Performed this command several times because I was not sure it if was done completely.

-Then the following:

console config:set --section=database --key=charset --value=utf8mb4
console config:set --section=database --key=collation --value=utf8mb4_general_ci
console config:set --section=Tracker --key=record_statistics --value=1

After that I get an “Database access denied”. I am using MariaDB 10.11.
Settings in config.ini.php are

charset = "utf8mb4"
collation = "utf8mb4_general_ci"

How can I proceed from here?

2

Okay, found it. The console script had messed up the credentials for the DB (I had some old values in comments or something).

With the correct credentials everything works again.