Rhino Save (ctrl-S) not saving and corrupting file permissions

Rhino
1

Hi all. I am having this problem. Tested with a clean, blank file, stored in my local filesystem.

  • I create a new file with just a box;
  • I save it for the first time;
  • I do an edit and CTRL+S
  • I get an error saying Rhino can’t save and I need to use SaveAs;
  • File I am working on becomes read-only (I can see it on the window top bar)
  • File .3dm becomes corrupted (so it tries to save something but fails) - if trying to open i get “not a valid rhino file” >>>> EDIT: the file is ok, its the permissions that get corrupted!
  • At least the backup file is OK.

Any help?

My version is Rhino 8 SR28 2026-2-10 (Rhino 8, 8.28.26041.11001, Git hash:master @ b7874a05a6982d0419fcc4f6009b510b48a09cb3)"

Thank you.

2

It’s working here, gonna need a lot more info.

What exactly does the error message say? Like screenshot it.

3

if you are indeed local check your macOS Full Disk Access / Files & Folders permissions. Its under System Settings → Privacy & Security → Files & Folders (or Full Disk Access)

What is your full system info? There could be macOS related sandboxing going on. Thanks!

4

Thanks, but I am using windows. Tested again, same result. Something’s off. When I check the overwritten file in properties/security there is no username or usergroups assigned. Windows explorer doesn’t even let me delete the file. This must be permissions related.

5

Hi, here’s the message when I open the file and try to save it. File is in my windows desktop.

image
image454×278 5.03 KB

6

Just found out that the file is NOT corrupted. But Rhino does not save the file permission correctly (they are blank). If I go to windows explorer and fix the permission properties (i.e. add my windows user) I can access the file and it was indeed saved correctly.

7

Seen this exact problem in other scenarios.
It is very probably unrelated to Rhino, but a more general problem with windows explorer and/or permissions.
You might have the same problem trying to edit a Word or Excel document from the same path folder.
Here some attempts I would try, not a real solution:

Explorer preview might cause permissions conflicts.
Try to disable the folder preview from the folder you open the document (ALT-P shortcut) or, if you open your file from the Rhino internal file browser “Open” , disable the preview panel there too before opening the file. (don’t even select the file before disabling preview).
You might want to try to avoid large icon visualization where you can see the preview in the icon, stay with the “details” view.

You might try to also toggle the Rhino advanced option:
Rhino.Options.FileSettings.WriteLocalTempFileWhenSaving
and see if it make any difference.

Lastly, try to run Rhino as administrator, and see if this fix something.
(remember that you can’t double-click a .3dm document this way, you must first start Rhino as admin and then use the “Open” command or drag-n-drop a file on the Rhino istance to open your .3dm file)

Edit: I’ve read online that similar behavior occurs when an SSD is dying and soft-lock itself to readonly to preserve data. Don’t know if this is true or possible, but anyway remember to backup your data.

8

Thank you for your detailed steps! Almost midnight and don’t have the energy but will test this tomorrow and report back!

9

Hi. Tried saving to other location (my user Documents) and mapped drive, problem persisted. Tried running Rhino as administrator and opening the file manualy, same thing. Tried with a Word document and it was fine so I think it must be Rhino related. PS: also uninstalled and reinstalled Rhino. SSD has like 2/3 years, hope it’s not dying :confused:

10

Forgot this setting. It worked! Thank you!

11

Was it on and you disabled it? Or the opposite?