Mirror

[fixeighted]

You accidentally clicked the "create V-Ray shadow catcher" button in the toolbar.
What I did not know is that FBX writes those properties to the exported file.
Also I like to solutions to this user error: Export as .3ds, attach to box etc.

Hehe yes, exactly this...I just never thought that an .fbx would write very software specific data into its export.
I spent quite some time trying to work out what was occurring, which was fun, though ultimately was flummoxed by it
Now we know!