RTE union president Noel Cooney said the company was aware of the issue, which he said had been raised with the organisation’s head of digital and social media.
“We are aware of this issue and are working to rectify it,” he said.
Mr Cooney added that the issue would be brought up at a meeting of the company’s global board of directors later this week.
“The issue is a very serious issue,” he told reporters.
“It’s not a small issue for us.”
Mr Covery said the problem would not affect the company.
“In fact, the problem is going to be brought to the board, so that they can consider that there are options for them to address it,” Mr Cooney told reporters at the union’s headquarters in Dublin.
“This is the second time we have had this issue.”
The company has previously been criticised for being overly sensitive about its social media presence, with the company having to set up a ‘Twitter for business’ page to deal with criticism of its use of social media, according to a recent report by The Irish Times.