Can not convert bios boot setting from legacy to UEFI, even though my disk is GPT.

After trying to convert my Supermicro motherboard bios to use UEFI instead of legacy boot, I was not able to boot to windows server 2019 and my disk partition style is indeed GPT. I had to revert back to legacy. Should I re-install windows, I would really like to avoid this if possible.

Any help is really appreciated.

Thank you.