Issue with selecting a stl object with Mac

[fabrice_dumans]

I'm using Fusion360 on Mac and I'm facing issue when I try to combine 2 objects (aiming to cut...)

I'm not able to select the STL object.... but only the one I created (in this case, it's a cube)

Looks like it does not recognize the Object. My friend who is using Windows, it works ... with the same parameters...

[jeff_strater]

Need more info, like a video or the model.  But, from this description, I suspect what might be going on is:  There are different types of bodies in Fusion.  The "one you created (the cube)" is likely created as a BRep solid body.  Look in the Bodies folder in your browser.  The "STL object" is likely a mesh body (again, look in the Bodies folder):

Combine only works with solid bodies, it does not work with mesh bodies.  You will have to convert the mesh to a solid to use Combine

[TheCADWhisperer]

@fabrice_dumans 

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?