Having the same issue. I upgraded to fix the YT API 3 integration and now our thumbnails are no longer responsive. The plugin is applying an inline style for a fixed width on the thumbnail div that cannot be overridden:
<div class="ytcthumb-cont" style="width:331px!important;">
The instructions say you can leave this field blank but then it just defaults to another fixed inline style width that is not responsive. If I remove the style using dev tools, responsive behavior is restored. I think this needs to be fixed by the developer.
Link: https://tayganpoint.com/insights/
I am using the following shortcode:
[Youtube_Channel_Gallery feed=”playlist” user=”PLtVoG0P4LQmsRqVCmnGNR7yDIoeaGb40k” videowidth=”677″ ratio=”16×9″ theme=”light” color=”white” autoplay=”0″ rel=”0″ showinfo=”0″ maxitems=”16″ thumb_width=”331″ thumb_ratio=”16×9″ thumb_columns_ld=”2″ title=”1″ description=”0″ thumbnail_alignment=”top” description_words_number=”6″ link=”1″]
Thank you. Really appreciate your work on this!