Table Of Contents Macro does not work inside a XWiki Macro or as a content of one

When I try to use the toc in a new custom XWiki Macro the Header does not show up.

Example 1 (Inside a custom Macro)

In the macro code named "custommacro":

{{box cssClass="floatinginfobox" title="**Table of Contents**"}}
  {{toc depth="3"/}}
{{/box}}

Then in the page a use:

{{custommacro/}}

But only the box shows up.

Example 2 (As a content of a custom Macro)

In the macro code named "custommacro2":

{{velocity}}
  {{box cssClass="floatinginfobox" title="**Table of Contents**"}}
    $context.macro.content
  {{/box}}
{{/velocity}}

Then in the page I use:

{{custommacro2}}
  {{toc depth="3"/}}
{{/custommacro2}}

But only the box shows up