Help! CrashRecovery file - error

[a.s.chernysh]

In the process of work, for some unknown reason, the Fusion itself closed 360 - no errors, no notifications of any kind - it just flew out and that's it. The backup file is with an error, the file in the Crash Recovery folder is also with an error.... Help - 5 hours of work in the trash.
The size shows that the file from the Crash Recovery folder - contains the latest changes - but it does not load - gives an error - an invalid zip package.

[Nilesh.Mohite]

@a.s.chernysh 
Sorry to hear that you are facing difficulties accessing the recovery data. 

Thanks for attaching diagnostic log files. We are going through the data shared by you to understand this problem more. 
We will get back to you with a solution.
Meanwhile, if you can share steps you performed that landed you in this scenario, it will help us to reproduce this issue.

[a.s.chernysh]

Thank you for your attention, I was no longer hoping for help.

The crash of the program occurred at the beginning of the calculation of the 3D Pocket strategy with a tool with a smaller diameter, with the option of using previous operations enabled.

[a.s.chernysh]

I really hope that you will be able to restore at least the design and layout of the objects in the project - I can re-implement the processing - but I'm afraid I won't guess with the arrangement of the elements...

[Phil.E]

Have you tried opening an older version of the file? I would recommend saving to the cloud more often than 5 hour intervals, so maybe you saved some of that progress so you don't lose all that work.

And it sounds like you might not be using the crash recovery dialog. Did you try opening the recovery file from here?

Unfortunately I don't find any crash reports from you for any past crashes. Those can hold a lot of information that could relate to your experience. What you describe could be a graphics crash. What does the graphics diagnostic tool in Fusion 360 Help (support and diagnostics) say about your GPU drivers?

[Nilesh.Mohite]

Thanks, @Phil.E .

@a.s.chernysh Is it possible for you to open an older version file of the same design? And share with us? It will help us to compare data against the provided backup file if possible. Right now we are not able to triage the corrupted backup file.

Here is link 

Fusion 360 Help | Open older versions of designs | Autodesk
https://help.autodesk.com/view/fusion360/ENU/?guid=ASM-OPEN-OLDER-VERSION

Either  Share or Export that design

Fusion 360 Help | Export designs | Autodesk
https://help.autodesk.com/view/fusion360/ENU/?guid=ASM-EXPORT-DESIGN


https://help.autodesk.com/view/fusion360/ENU/?guid=ASM-OPEN-OLDER-VERSION

[Nilesh.Mohite]

If it's possible and if it's ok with you, can you DM me your email address used for the fusion account? I will try to find the Crash report related to this.