ToC Macro adds titles from other macros

The macro ToC, adds titles which appear in other macros (such as gallery or task list). Those entries have no link associated, but they are displayed. If you preview the page before you save it, those entries do not appear (IMO, the expected behavior).

Please check the screenshots for more details.

Workaround:

Add the titles you do not want to display in the field Exclude Headings of the Table of Contents macro.