1. I have cached the shot because it is heavy. When I make a change, it starts caching again, which is OK. But when I UNDO, the program starts caching the already cached file again. (Other programs like AE can revert to the original cached file)
2. When I make a duplicate timeline for alternate changes, the program starts caching the complete everything again. When you have a full feature film, it takes 1 TB and takes hours to render.
Caching seems to be not very intelligent, efficient, or kind about disk space.
Yes, I want to point that out. I hope the creators read it. As well as my other observations. I'm not trying to criticize, I'm trying to improve a program I love, same as many others.