STM32 Usb Mass Storage EJECT issue

I have Usb Mass Storage working well on my custom board device featuring an STM32F469AIH6 and an eMMC (SDINBDG4-8G). I can connect to either a Mac or Windows machine and the device shows up in the Finder/Explorer and you can read/write files just fine.

The problem I'm having is when I eject the device, it briefly ejects, then starts the connection process again as though it were just inserted. While this isn't the worst problem in the world it is still annoying, particularly on a mac because the OS puts up a notification that the disk was not ejected properly.

Has anyone else experienced this? Do you know how to make the ejection work properly?

Thanks,

Craig