The number start with 18

Hey @onsecrethunt can you send a list of plugins or contents in the post? I have noticed things like table of contents plug-ins can offset the numbers

Yes, you are right. Table of content plugin is creating the issue. When I disabled the plugin it works. Thanks for the quick help.

@onsecrethunt I am going to try to fix this, what TOC plugin are you using?

The plugin name is Fixed TOC from codecanyon.