i do not think OC boots Linux yet.
oh another thing is that bootloaders will only boot properly from default paths. so if lets say you have
EFI/OC/ and try to boot from lets say a backup of efi
EFICopy/OC from a bios menu it also will not pull data properly as it will still pull from EFI/OC wich also causes the issues i posted above.
it is not only OC but also Clover