Entire Project Gone
I am working on a personal project with many complex pieces. At the beginning of the process 3 weeks ago, I had imported some footage into Premiere Pro to experiment with. It was really just testing out some ideas for future work. Nothing I intended to save. After playing around a while, I decided some footage need to be in After Effects to achieve what I was trying to do. So, from Premiere, I selected some footage, right clicked, and choose "Replace with After Effects composition." This, of course, created a new After Effects project, which I saved in a different location under the name "Title Sequence". I worked only in AE for the next 3 weeks.
Last night, as I was nearing the end of the After Effects portion of the project, I decided to pop back into Premiere for the first time and start working on bringing other elements of the project together. Opening Premiere, I saw all the other iterations of the Premiere project from 3 weeks prior that I had created when I was experimenting with different approaches. At this point, it was really just crap I had no use for any longer. It was cluttering up my project folder, so I decided to delete all Premiere project files in this project folder and start fresh. After Effects was open with the Title Sequence project loaded at the time.
After I deleted the Premiere files, AE began to complain that it could no longer autosave. I tried to save Title Sequence manually, but it said the project file could not be located. I decided to exit the program without saving because I thought there was some sort of glitch happening and I didn't want to bake it into my project file permanently. I should have saved under a new, unique name. But, I really didn't think too much of it.
After relaunching AE, I discovered Title Sequence was gone from the project window. I navigated to the project folder for AE only to find that it no longer existed. I searched my hard drive thinking the files were simply in a different location than what I remembered. Nothing. Thinking I had perhaps accidentally deleted the After Effects files when I deleted the Premiere files previously, I checked the Recycle Bin. Not only were the AE project files not there, the Premiere project files I had intentionally deleted were not there either. All project files and folders associated with this project just up and vanished.
Potential Causes:
Now, I keep my footage located on a different set of hard drives than where I store my AE/PP project folders. I still have all my footage. I mention that because the only time I know of where Windows will delete something without putting it in the Recycle Bin is when files or folders are too large to feasibly put there - usually several gigs. Since my footage is in a different location, my AE/PP project folders are small - usually a couple megs, less than 100 megs for sure. So, I don't think that's the case.
I also thought perhaps this happened because I had originally used the "Replace with After Effects composition" option to create the AE Title Sequence project. I thought perhaps because I deleted the PP "parent" project, it went ahead and deleted the AE "child" project that went along with it. I conducted a little experiment setting up a scenario like that with a new test project and that didn't seem to be the case. Furthermore, whatever I deleted ended up in the Recycle Bin as expected.
So, I'm kind of at a loss. 3 weeks of work are gone and I have to start from scratch. It is what it is. But, I'd really like to understand what happened here so I can avoid it ever happening again.
EDIT:
General System Info:
AE CC 15.1.1
PP CC 12.1
W10 (Latest updates installed)
Nvidia GTX 980ti (Latest drivers)
16GB DDR4 RAM
Nvidia GTX 980ti
Samsung 960 EVO 500GB NVMe SSD (project folders, disk cache)
4x1TB HDD RAID10 (footage)
