I have the same problem. Google search console desindexed all my AMP pages because of the plugin (I think). Here is what google search console shows :
<amp-facebook-comments layout=”responsive” width=”100%” height=”400″ data-href=”https://f1actu.com/charles-leclerc-a-le-feu-vert-pour-se-battre-contre-sebastian-vettel-au-grand-prix-de-bahrein/” data-order-by=”social” data-numposts=”30″></amp-facebook-comments></div><div class=”sharedaddy sd-sharing-enabled”><div class=”robots-nocontent sd-block sd-social sd-social-icon sd-sharing”><h3 class=”sd-title”>Partager :</h3><div class=”sd-content”><amp-social-share type=”twitter”></amp-social-share><amp-social-share type=”facebook” data-param-app_id=”249643311490″></amp-social-share><!– not supported: jetpack-whatsapp –><amp-social-share type=”linkedin”></amp-social-share><amp-social-share type=”pinterest”></amp-social-share></div></div></div> </div>
I noticed the problem the first time on april 11.
As soon as I disable the Facebook Plugin, the problem disappear.
Please check and advise.