As a follow up to this, if my file was called “Filename”, there is a file in the same folder called “Filename-0.skp” that is 0kb in size that was saved late in the day that would have all my work, if it was not 0kb in size.
I assume SU created an Autosave of the file in “C:\Users\AppData…\SKETCHUP\RecoveredFiles”
If it did, I assume SU thought that the file was now saved the files documents folder and deleted the autosave version from RecoveredFiles.
On this assumption, I went through the hard drive with several file recovery programmes, and even searched for all deleted files in the RecoveredFiles with no luck. I also went through all SU files on the drive searching for the signatture Hex values for the file, and I could not find a later version of the file anywhere.
It may have been overwritten as the drive was fairly full.
The old system whereby Autosaves were saved in the same folder as the file was much better, as the file would be in a users documents/desktop/server folder and you are far more likely to have a cloud or backup based solution targeting this folder.
Nobody is going to have a cloud/backup targeting a hidden \AppData folder.
Is there any way to change this?