Current problem ive encountered is when I am editing a 3d head, I click preview and can move the head left and right as normal. Once I click space to stop preview, suddenly the character disappears. Even if I leave the whole bone editor section backk to the animation editing section, I have a grey screen. I can no longer edit anything, and I am having to completely relaunch the app. This is a massive problem. I need to improve the ears of my character but after the first preview no project is visible. Example below.