SATA UHD Drive, sometimes hangs loading

[skeet5]

Have a new build of a PC on a Shuttle cube, running Windows 10. I have a couple of UHD drives, one an LG, the other a Asus BW-16D1HT. Both work well for makemkv ripping.

But I've notices that sometimes, makemkv will hang "Loading..." after I insert a 4k blu-ray. Takes a power cycle to get control again. Not sure, but seems like if I insert the disc first, then start makemkv, it tends to not hang like that.

Sorry if this is asked before, but is this a known thing that can be worked around? Let me know if I've missed important info. System is running SATA mode and UEFI boot.

[Coopervid]

It is recommended to have Windows read in the disc first and only then start Makemkv.