I have enabled Video embeding plugin and I tried to copy, paste youtube URL and also HTML code but it doesn`t work. When I copy URL into question or answer it shows me https://www.youtube.com/*****?v=2tAxnPocoS (stars in the middle). However there should not be stars in this link. Can you please help me to resolve this issue
I bet you have censored the word watch so when Q2A displays the question replaces the references to that word in the question content with stars, braking the link. Remove the censored word from admin/posting and problem should be fixed.