I've got the disk problem thing too. Moreover, the green check icons are still broken after all these years. I just had a search come back with 10 results. All showed green checks. Not trusting these, I selected them all and hit download. I got 8 overwrite prompts and zero "continue or cancel" prompts saying I already had files with the same content.

Which means two of the green checked files were neither files whose names already existed at the download destination, nor files whose content already existed in my library, the two things that are supposed to produce a green check...