Yes, this happens to me too. I just edit the html file and do it manually, if you open it you will find the instructions inside the hack at the bottom of the code.
Could you show me an example of where I can find the hack code in the html file as I seem to can't find it as I'm not familiar with html coding -_-;
this is the part you should look for (maybe do a ctrl-f for hackOptions ?), the screen is from my game Ghost School so it's already edited.