Hi James,

re:
> Does it only work for files saved using the 5 beta?

Yes saving the embedded thumbnail image is new in version 5.

3DM Files saved with version 4 won't have that.

- Michael

Hi James,

re:
> it doesn't work for me at all (files saved with v4 or v5beta).

What version of macOS are you using?

Do you have other programs installed that also handle .3dm files?

- Michael

Hi,

I'm on Tahoe 26.6.2.

Installed are:
MOI v4
MOI v5 beta
Trice (viewer only)

I have have just deleted it. Nothing has changed so I will also re-install MOI and see what happens. Will report back



edit: Made no difference.

By the way, this is the command I needed to run the app:
"sudo xattr -cr /Applications/MoI\ v5\ beta\ Apr-27-2026.app"