Comments not saving in Rekord Box

Hey there I have a some tracks that I want to change the comments in to a specific key and every time I try and do this it wont save it and will go back to the original comment. For example I changed a key from 7A to 07A but it will do it until I close the application and then re open it and then it goes back to 7A. What can I do so it will save my edited comment on the track? Thanks