This is a bit of an odd one. If I insert smaller SD cards in the built-in card reader (up to 32gb), they read no problem. However, my 128 card isn't seen at all. It reads fine in Windows. Nothing shows in the files app, and If I open Gnome Disks, nothing shows there either. USB card reader sees the card just fine. So the same card works in USB in Elementary, and it works in the built-in card reader on windows. But not on the built-in reader in Elementary OS. I'm pretty stumped.