A common problem we see when performing healthchecks of our customers' Moodle sites is the "cron" process not working. It's configured correctly, and starts to run but doesn't get to the end. There can be a variety of causes for this, such as database issues or problems with third-party plugins.[...]
Duplicate user accounts in Moodle is a huge problem. Often, users forget that they already have an account or don't know that they can change their email address within their existing Moodle account, thus they then create a new account or a new one is created for them.
The problem with this is[...]