In the EC the Potion of Glorious Fortune buff is miss its icon file 24036_Potion.dds.

I have created an icon for it that looks like:

Download the dds file from my github repository
https://github.com/TimStotelmeyer/Ultima-Online/blob/main/24036_Potion.dds
and put in your Icons\Buffs_Debuffs\green directory.