Two NPCs in Map 1 and Map 4 are equipped with the Silver Sword of Paralysis from the Bloodmoon expansion. This sword is inexplicably more powerful than its Daedric counterparts whilst providing a paralysis effect. This sword is also found in the TData leveled list for one hand long at PC Level 15. A fix for data has been submitted on Github, this is for the mainland file itself that fixes the NPCs and gives them Silve Flameswords instead.

The NPCs in question are

TR_m1_Adryn_Seloth

TR_m4_Tilore_Uvandrys & TR_m4_Tilore_Uvandrys2

the Data issue is found in T_MW_Lvl_WeaponsLongOneHand