Grafana admin user/password not respected

Hi. I have a Rocky Linux 8.5 image with grafana 8.4.6-1 in it. I’ve then launched a VM with that image, and run the cloudalchemy.grafana role, which has then installed 8.4.7-1 as the latest available. That role also set admin_user (NOT to the default “admin”) and admin_password. The username/password are correctly set in /etc/grafana/grafana.ini. However they don’t work. Looking at the mysql database (using hints from here) I can see that the db contains the default admin user.

Anyone have any ideas what’s happened here please?