First, check the Agent Properties to ensure that the Collection Intervals for the missing metric categories have a value greater than 0. If a collection interval is set to 0, data for that category will not be collected.
Then, check user permissions by logging into the MySQL server as the user employed by the MySQL Agent. Run SHOW GRANTS to check that all necessary permissions (listed in the MySQL Agent documentation) are present. If they are not, add them. You may also check by running the same queries that the agent uses and ensure they are returning data, like SHOW ENGINE INNODB STATUS, SHOW PROCESSLIST, and SHOW GLOBAL STATUS. If replication is being monitored, you may also do SHOW MASTER STATUS and SHOW SLAVE STATUS, if applicable to this server.
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