Recovering Stud.io BACKUP File

[JLiu15]

Hi everyone,

I was using Stud.io when it froze and crashed, and after it crashed I saw that my file was a .io.backup file. I tried opening it in Stud.io but the parts never load (gets stuck at 0 / 1 when parsing). After I tried opening it the file shows as a .io file now, but under file type it still says "BACKUP File" when I view it in File Explorer. This is a rather large model so I really hope it can still be recovered. Has anyone else experienced something similar and managed to get their file to work again? Thanks!

[Berthil]

Lately Studio is a nightmare when it comes to stability. When I work on a file and hit Ctrl+S to save, it seems like it is saving a file but it some cases it didn't. So after reopening the next day, nothing was saved and all the work lost, so I now check the timestamp of the file after every save. If it didn't save I have to save it as a new file. I'm using the Mac version and have done several fresh installations after removing the Studio App folder first.

One other large file I have does not save anymore. It says it saves but generates the .backup file instead. After trying to save a second time Studio just crashes out. I've reported on the Studio forum but no solution other than send in my file which I don't want to do because it is a commercial design.

You can remove the .backup extension and it should be a normal .io file. That doesn't mean the file was not damaged as described above. If you don't see .backup but Explorer reports it is a .backup file, probably Explorer is configured to hide file extensions for known file types. Disable that setting and the .backup extension should be visible to remove.

Other problems I have is that custom parts will not load on a second opening of a file and show the null brick. Recently I discovered that this problem is caused by the Recent Items window that also shows the used part as a Null brick. When closing the Recent Items, restart Studio and re-opening the file, the custom parts show.

And in the latest Mac version it produces scrambled PDF instructions. Items like parts list are placed randomly on pages where they don't belong. When using the same IO file on a windows system the PDF was generated correctly.

You never know what the next update brings.

Edited June 29, 2025 by Berthil
typos

[Legotyres]

Seems I'm having issue with this .backup problem and once its happened, its only a matter of time before the program comes to a halt and fails altogether

Mines windows, so the issue isn't MAC/Windows. So could it be an issue at Bricklinks end with the software trying to contact them and when it cannot it goes a little haywire as it doesn't know what to do

I know there is a warning message saying that no-one can login to their account until 2.25.9 which might be all part of the same thing

I've been fighting with it for a few days trying to complete a set of instructions and every time I'm going back more steps than forward

It's certainly becoming a pain and although its free, it's becoming unusable which is such a shame for what was, a class leading program

And just when I'm finding out so many of its cool features 

 

@legotyres