By making the following change, you will be able to enable this feature and retain your MySQL disk usage tracking.
1.Log into your cPanel server by SSH.
2.You will need to edit /var/cpanel/cpanel.config file with a text editor.
oReplace "disk_usage_include_sqldbs=0" with "dis_usage_include_sqldbs=1"
3.Once you have made the change, you will need to run the following:
Once the script completes you will be able to see the correct MySQL database sizes again