1. I open MakeMKV
2. I insert a disc into the drive
EDIT: 3. This actually happens before I tell MakeMKV to open the disc, so its still loading up the disc open button when it first tries to read the disc
4. MakeMKV enters a non-stop loading cycle
5. The drive no longer exists in Windows Explorer and I can't do anything with it (such as eject the disc)
I can get the drive to reappear by force closing everything MakeMKV related in the task manager (importantly the disc arbiter), then disconnecting and reconnecting the SATA cable of the drive (which is an annoyance because I have to leave my tower open).
I'm fairly certain this is a problem with MakeMKV because I can avoid this issue by swapping steps 1 and 2. If I insert the disc and wait for Windows to recognize it, then open MakeMKV I can rip twenty discs in a row with no problem. There are no error messages because, as far as MakeMKV is concerned, it's still trying to open a disc, and will stay that way without end.