v 8.5 Games

If I press F on a branch to work on some leaves via hand node editing, after some time, usually when you're almost done (say 5mins) ST will crash and when I reopen the sbk, I can not 'un-focus' the rest of my tree. ST will just keep crashing if I press F again

I've lost lots of time with this because if I don't have a saved back up or short auto-save, I have to restart from scratch. I go to hand editing nodes because it's the easiest way to get what I want as usually there is always one or two leaves that are pointing in weird , unnatural directions, or intersecting other leaves.(collision doesn't appear to do anything half of the time)