If its like the odd issue I had with dual booting windows 11 and Mac OS, you may need to copy your EFI from the boot drive onto a USB drive, (the Mac OS Installer USB would work) and then boot to Mac OS once, then reboot, reset NVRAM, then go into Bios, select your opencore SSD as first boot device and it should fix that. Mine did that on a couple of my machines when Win 11 updated recently.i have 2 nvme
both in motherboard installed
1st slot 970evo plus - for windows
2nd slot for 960 evo - mac - mac running fine
windows 11 after security update - stuck in loading screeen how to fix this ?