Possible Memory Issue? (v 2.729)

I was trying to add some music to my internal (SD) drive on my Pi Zero based Volumio streamer. When I drag the files to my, “internal” drive, I’m getting an error message that I don’t have enough memory for the additional music.

In reality, I have around 25gigs of music plus Volumio on a 64 gig SD card. I’m copying the files from my Mac via the Finder under Catalina.

Oddly enough, I also have a Pi 3B+ based streamer and I can copy the music to it’s internal SD card without any problems.

Is there any reason a Pi Zero might treat memory differently and generate this erroneous error?

Thanks!

Any thoughts?

I’m on the latest version, 2.799 and the problem persists. This only appears to be a problem on the PiZero.

Thanks