I agree you should start a new thread…you’ll likely have a different group of people looking at OSD issues versus Remote Control configuration.
When you start the thread, please describe what type of hardware you are using on the client (physical, virtual, manufacturer, etc.) along with what your values for the DHCP options are and what kind of DHCP server you’re using (Windows, ISC DHCP, something else)
On some type of VM, I recall the presence of option 43 breaking UEFI boot, but removing option 43 breaking Legacy BIOS PXE boot. I ended up having to set up “DHCP Policies” to send different options to different client types.