So it appears I may have lost several hours (which is weeks worth for me) of one of my dreams. Not sure if anyone can help, but hopefully you can learn from my mistake if not...
Here is the sequence of events.
First I started working on a building. After a long time with it, I realized I was using up too much thermo to detail the inside AND outside in the same scene, so I grabbed all the exterior parts and saved it as a different scene. Great.
From there I worked on the interior scene for several hours and worked on the exterior scene for several hours.
This whole time I had just been saving to my PS4. With literally dozens of hours between everything, I was getting paranoid that my PS4 would die, so I finally got around to saving it online as Private. I started with my interior space. When I went to upload it, the game made me also save anything that was connected to it. Okay. No problem there. I had it upload everything as Private.
Then when I go back to my exterior space scene, it's reverted back to when I first exported it as its own scene. Several hours of progress lost.
So, first question is obviously am I screwed? Is there a way to revert back to my previous save on my system?
If not, please tell me what the heck I did wrong so that I won't have this ever happen again. Really frustrated and depressed over this. I don't have a ton of time to work on this each week, so it's weeks worth of progress lost. :(