Since 6.02.0, Naginata now shows a reach of 5ft in both PDF exports and the Character Sheet display tab in the UI.
This is on an Eidolon with hands and extra arm limbs with claws.
Tried equiping a Glaive for testing, and this displays the correct reach of 10 ft. Attempted to modify the equipment LST file for Naginata in Ultimate Combat with the appropriate TYPE properties for the Glaive in the Core Rulebook equipment LST file (see below for modified value attempted). No change to the issue.
Naginata PROFICIENCY:WEAPON|Naginata TYPE:Weapon.EasternWeapon.Eastern.Melee.TwoHanded.Martial.Reach.Slashing.Polearm COST:35 WT:9 CRITMULT:x4 CRITRANGE:1 DAMAGE:1d8 EQMOD:STEEL WIELD:TwoHanded REACHMULT:2 SIZE:M
Windows 7 x64, PCGen 6.02.1 RC1
Are you loading Ultimate Equipment?
Issue with UE.