This has happened on only opened files. I’m using SKP 2022 on Windows 10. Have never had an issue like this before. I will be in the middle of working on a project and all of a sudden my project will revert to last save. No warnings, no crashes, no popups, just all of my unsaved progress is gone like it never happened and the undo button will be greyed out as though the file was just opened.
Did you install SketchUp correctly? That requires right clicking on the downloaded installer and selecting Run as administrator.
Is it possible you hve a keyboard shortcut accidentally set up for Revert?
Has this always happened since you started using SketchUp 2022 or did it just start recently?
Yes, the program was installed correctly.
No it’s not an accidental hotkey for revert as the most recent occurrence was when I was away from my desk and no one else was around.
It’s only started happening since I started using the '22 version of SketchUp. As of right now I cannot find a pattern of behaviour and it seems rather random. It’s not isolated to just one particular file as it has happened to three unconnected projects I’ve been working on.
Are you saving the files to your local (internal) drive?
It wouldn’t hurt to try repairing the installation of SketchUp. Close the application, right click on the downloaded installer, choose Run as administrator, and then choose the Repair option. Make sure you are doing this under your normal Windows sign-in.
The files are being saved to a cloud drive. I’ll run Repair and see what happens. It happens infrequently, I’m not sure if I’ll know whether or not it worked.
This is generally not a good idea. There have been many reports of files becoming corrupted due to problems during auto or manual saves to the cloud. Best is to save to your local drive and sync files to the cloud. Repairing the installation won’t hurt anything but change to the recommended workflow for a month or so and see if the issue continues.
Duly noted. I’ll give it a shot for a while and see what happens.
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Good luck.
By the way, if you’ve never had files actually corrupted due to saving to the cloud, you might want to go buy a lottery ticket before your luck changes. 
Think I’ll take that advice too as I’ve never had an issue with corrupted files and I’ve switched from mac to pc without an issue either.
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