Missing Studio Content

Recently I was looking for an older build in my studio when I noticed that it was absent, along with many other uploads. Most of them were older builds, however some were within the last 2 years. I know what I have deleted. I had some computer problems where I had to completely re-install and so I uploaded them as safeguards.  I have 2 now, one with store content and the other without, but that is another story I won't go into. 🤬The team on Cape Albacore remembers this, I am sure. lol. Has anyone else noticed this has happened to them? I am sure this is recent; I would guess within the last 3 months as I often poke around in my studio seeing what I can improve or to Dl to my other system.