Castling Move Technical Issue

The site has changed castling to remove the ability to click the king and then the rook to castle, at least by default. If that is what you're trying to do you need to change the Castling Method under Settings > Board and Pieces to Legacy from Normal.

There was a alert that would come up for a while after it was released that explained the castling changes.

The site has changed castling to remove the ability to click the king and then the rook to castle, at least by default. If that is what you're trying to do you need to change the Castling Method under Settings > Board and Pieces to Legacy from Normal.
The new castling method has become automatic in user settings. Even if they didn't want it. After the changes, you could write a notice to all users that if the new castling method does not suit you, you can return the old castling method, and everything will be as it was. My personal opinion is that the new castling method is inconvenient.

... After the changes, you could write a notice to all users that if the new castling method does not suit you, you can return the old castling method, and everything will be as it was. My personal opinion is that the new castling method is inconvenient.
When the castling method changed there was a notification about it but originally the old method was completely removed. I'm not sure there was a new notification when adding in the option to allow the old method again.
I have had issues lately with trying to castle. I have lost several games lately because when I have gone to castle, it instead has moved my king one spot. It has done this at least a dozen times at this point. Up until a couple weeks ago, I never had this issue.

I have had issues lately with trying to castle. I have lost several games lately because when I have gone to castle, it instead has moved my king one spot. It has done this at least a dozen times at this point. Up until a couple weeks ago, I never had this issue.
Did you look at post 2 above?