Please test with VMWARE, connect the ISO file directly to CD/DVD of a VM and boot in UEFI mode.
VirtualBox in UEFI mode can boot some unstandard ISO file which is not fully match the bootable ISO file specification.
Although this is user-friendly, but it may obscures a fact that the ISO file is not fully standard and may can not boot in other environment(e.g. VMware/Qemu/Physical Optical Drive ...)
VirtualBox in UEFI mode can boot some unstandard ISO file which is not fully match the bootable ISO file specification.
Although this is user-friendly, but it may obscures a fact that the ISO file is not fully standard and may can not boot in other environment(e.g. VMware/Qemu/Physical Optical Drive ...)