Project and auto saves lost

How was your project setup?

How did you use folders to organise your Project / GFX /AUDIO /etc. Did your assets also get affected?

Where was your media stored?

Did you separate cache from project files?

What were your autosave settings set to before you started?

It may well be that the original .prproj is damaged, but that wouldn't account for the disappearance or corruption of any auto-save'd projects. 

Does some sort of process get run across all systems, over the weekend? PPro only deletes .prproj files when renaming them, and doesn't clear out the auto-save directory under and circumstances.

If you'd like, we can take a look at a given .prproj, and let you know whether it's corrupted or not. 

Everything was stored in Docs > premiere (I know now using pp should back up to at least 30 locations but I'm used to Avid and so assumed the autosaves would do the job) There was nothing in any folder apart from the few render files in 'video previews' (.PRV).

I spent £75 to get back my damaged files from Wondershare, which for one use and for an unsuccessful result, I consider expensive.

I've tried importing all of the recovered auto saves and the the main project, importing just sequences, importing the whole project and importing as a shared project. I've tried downgrading and opening in 23.0 as well as opening in beta. Comes back as damaged every time.