Register- Setting usergroup isn't setting in database

[[!Register?
    &submitVar=`registerbtn`
    &usergroups=`6`
    &activation=`0`
    &activationResourceId=`11`
    &submittedResourceId=`12`
    &activationEmailTpl=`lgnActivateEmailTpl`
    &activationEmailSubject=`Thanks for Registering!`
    &usernameField=`email`
    &useExtended=`1`
]]

<form id="AddEditProfile" class="form" action="[[~[[*id]]]]" method="post">
<fieldset>       
	<div class="Row">          
        	<label for="fullname">Full Name
            	<span class="error [[!if? &subject=`[[+error.fullname]]` &operator=`empty` &then=`hidden`]]">[[+error.fullname]]</span>
        	</label>
        	<input type="text" name="fullname:required" id="fullname" value="[[+fullname]]" />
	</div>
<div class="Row">         
        <label for="email">Email
            <span class="error [[!if? &subject=`[[+error.email]]` &operator=`empty` &then=`hidden`]]">[[+error.email]]</span>
        </label>
        <input type="text" name="email:email" id="email" value="[[+email]]" />
</div>
			<div class="Row">
				<label for="company">Company <span class="error hidden">[[+error.company]]</span></label>
				<input type="text" name="company" id="company" value="[[+company]]" />
			</div>
<div class="Row">
        <label for="password">Password
            <span class="error [[!if? &subject=`[[+error.password]]` &operator=`empty` &then=`hidden`]]">[[+error.password]]</span>
        </label>
        <input type="password" name="password:required:minLength=6" id="password" value="[[+password]]" />
</div>
<div class="Row">
        <label for="password_confirm">Confirm Password
            <span class="error [[!if? &subject=`[[+error.password_confirm]]` &operator=`empty` &then=`hidden`]]">[[+error.password_confirm]]</span>
        </label>
        <input type="password" name="password_confirm:password_confirm=`password`" id="password_confirm" value="[[+password_confirm]]" />
</div>

    <div class="addEditButton">
     <input type="submit" name="registerbtn" value="Register" />
    </div>
</fieldset>
    </form>