Comment 65 for bug 1872476

Ok, I tried more. I downloaded a random copyright-free music file to this ubuntu system, and moved/copied to the samba share folder, and I could share the file properly. Repeated several times, and the same result. And then, I downloaded a different copyright-free music file from the same site to my macOS system, and copied to the samba share folder of ubuntu system (through Nautilus). At first, the file correctly showed. After that, I moved the file to shared folder to my home folder, and copied to the samba share folder again. Now the file is showing as a folder. I think I'll gonna try this from my another laptop (this one has Windows system installed), maybe tomorrow.

When I search about this kind of bug, some users are still suffering from it even after the patch but now I'm not sure where exactly to find the source of the problem.

@ Rapper-skull Well the image was from this site. I still don't have the symptom with this file.: https://www.pcmag.com/reviews/apple-macbook-pro-16-inch