Rich Text Editor not working with content-authors group users

Hello All,

We have a Rich Text Editor component having below controls available(in _cq_editConfig.xml) for editing text.

In AEM 6.3.2.2, when we log in as admin/admin and open the RTE component in edit mode, all controls are available for editing text.

But when we login with a user who is part of Authors(content-authors) group, none of this controls are available for editing text. Only few controls like bold, italic, anchor etc. are available.

Why the component not showing all controls, when logged in as a content authors user?

But the same component working fine in AEM 6.0, when accessed with both admin user or content author user

<cq:inplaceEditing
jcr:primaryType="cq:InplaceEditingConfig"
active="{Boolean}true"
editorType="text">
<config jcr:primaryType="nt:unstructured">
<rtePlugins jcr:primaryType="nt:unstructured">
<paraformat
jcr:primaryType="nt:unstructured"
features="*">
<formats jcr:primaryType="cq:WidgetCollection">

                 // P, h1, h2, h3 etc goes here

                </formats>
            </paraformat>
            <styles

jcr:primaryType="nt:unstructured"
 features="*">
 <styles jcr:primaryType="cq:WidgetCollection">

// title1, body1, body 2, body 3 etc goes here

            </styles>
 </styles>
 <edit
 jcr:primaryType="nt:unstructured"
 features="[cut,copy,paste-default,paste-plaintext,paste-wordhtml]">
 <configuration
 jcr:primaryType="nt:unstructured"
 defaultPasteMode="plaintext"/>
 </edit>
 <findreplace
 jcr:primaryType="nt:unstructured"
 features="*"/>
 <format
 jcr:primaryType="nt:unstructured"
 features="[bold,italic,underline]"/>
 <links
 jcr:primaryType="nt:unstructured"
 features="*">
 <anchorDialogConfig jcr:primaryType="nt:unstructured"/>
 </links>
 <lists
 jcr:primaryType="nt:unstructured"
 features="*"/>
 <misctools
 jcr:primaryType="nt:unstructured"
 features="[sourceedit,specialchars]"/>
 <spellcheck
 jcr:primaryType="nt:unstructured"
 features="*"/>
 <subsuperscript
 jcr:primaryType="nt:unstructured"
 features="*"/>
 <table
 jcr:primaryType="nt:unstructured"
 features="*"/>
 <undo
 jcr:primaryType="nt:unstructured"
 features="*"/>
 </rtePlugins>
 </config>
 </cq:inplaceEditing>

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