Umbral planes is missing the drops for the monk/beastlord armour sets. Should be either ID 26156 to 26162 or 26163 to 26169. Thanks to Rasper for the help tracking this down. https://www.raspersrealm.com/Everquest/Tools/UP_Armor.html With Luclin going live 13th October on Mischief and Thornblade would be nice to get these items sorted for monks and beasts next patch, especially as they are the only 2 classes without a gear set from this zone. 26180 Lost Elven Bracer is also missing for druids.
They don't appear to be completed items, so we can't confirm whether this is a bug. There is no fix planned at this time.