Supporting MacOS Mavericks. An OS with its last update of any kind being over 3 years ago? I wouldn't expect you to be happy, but to blame Kemper? I don't think that's fair at all.
I don't really want to blame Kemper, I'm surely unhappy and bitter to not be able to use the editor (who looks great) but not be able to use RM2 anymore is something hard to process right now for me, i use it a lot !!
Of course if I want to update my Kemper but come on, acoustic sims and more to comes make me want to update it )