I renamed the default head and body materials in version 5.05 to avoid duplicate materials when exporting to Unreal. Later, I updated the program to version 5.07, and now I can’t apply any other materials from the Content Store or edit the skin in any way: the program either crashes or displays an “Unable to load file” error. I figured out what the problem was, but for some reason you disabled the ability to rename the default skin materials. I can only switch back to 5.06, but luckily my colleague has version 5.05.