Categories dropdown not being fully populated

Thanks for the system report.

We’ve taken a look at the code and discovered that the MainWP Child plugin limits the number of categories that are synchronized to the Dashboard to 300.

You can find the modified version of the Child plugin that will send up to 10 000 post categories to the Dashboard: Dropbox - mainwp-child.zip - Simplify your life

We will have a filter in the next version of the plugin, with which you will be able to set a custom number of posts to be synchronized.