yeah that does kind of make sense actually. I didn't know that

I can accept that Hendry may have been offside, but then why did they make the referee go to the screen? Am I wrong? Don't the VAR officials usually make offside decisions themselves? At the very least, shouldn't the referee get the lines applied to the screen so he doesn't have to rely on his naked eye?

It seems like the referee did in fact disallow it for being a foul, and ten minutes later the VAR officials told the commentators he was offside because they realised that was a stupid decision. Just a shitshow all around.