The incident was captured on video on the International Day Against Homophobia.
The censoring of a gay love song and other content is not in line with the contest's tradition of inclusivity, says Eurovision's organizer.
The highly anticipated Looking for Rohmer is a milestone for representation — although some viewers wished it were gayer.
LGBT rights advocates responded in droves with the "I am gay" hashtag when the Twitter-like platform Weibo said it would ban pornographic, violent, and homosexual imagery.
The website's decision to remove gay content is viewed as part of a larger move under President Xi Jinping and the Communist Party to stifle ideas.