The Composite Fields do not display anymore the fields captions

When using a composite field in a form, the system does not display anymore the captions of the fields.

The same configuration works fine with 6.0

 <div class=“v-caption” id=“gwt-uid-311" for=“gwt-uid-312”><span class=“v-captiontext”>Category</span><span class=“v-required-field-indicator” aria-hidden=“true”>*</span></div>

The caption is indeed here, but the display attribute is set to none.