This is not the 1st time but I happened to have my phone in hand during that and recorded it
fb://group/?id=195242717256832&view=permalink&object_id=1203517883095972
fb://group/?id=195242717256832&view=permalink&object_id=1203517883095972
fb://group/?id=195242717256832&view=permalink&object_id=1203517883095972
fb://group/?id=195242717256832&view=permalink&object_id=1203517883095972