MSI Mobo and updated PXE issue
I found one model of MSI Z370M MORTAR (MS-7B54) mobo in UEFI mode, which fails to boot Windows from local drive in PXE boot after the 1.5.0 update. Tried to update its firmware to latest stable, but that didn't help.
After it wants to boot from local machine, it hangs on black screen with cursor blinking. If the PXE boot is canceled with ESC, it boots correctly.
For the time being I set Windows as first boot option.