(1240/1242)(100%)(1268/1268)(standing)(civilized)(7 PM)(24350tnlvl) You are using:
<worn on finger> a bloodstone ring
<worn on finger> a golden lion's wrath ring
<worn around neck> an ivory amulet shaped like a troll
<worn around neck> (Humming) a fine stole of white ermine
<worn on body> (Glowing) (Humming) a suit of darkened platemail
<worn on head> a conical cap
<worn on face> (Glowing) a golden mask of jewels
<worn on legs> (Glowing) (Humming) a pair of darkened leggings
<worn on claws> (Glowing) talon guards of crystalized magic
<worn on hands> gauntlets of ogre power
<worn on arms> (Glowing) bracers of defense
<worn on wings> some stylish leather wing guards
<worn about waist> (Glowing) a belt of flaming demon scales
<worn around wrist> a bracer of dragonscale
<worn around wrist> a studded leather bracer
<mainhand wielded> (Glowing) (Humming) the crystalline eldritch sword named 'Spirit Breaker'
<offhand wielded> (Glowing) (Humming) a ghostly scimitar

(1240/1242)(100%)(1268/1268)(standing)(civilized)(7 PM)(24350tnlvl)
Lasentia stops using a ghostly lute.
Lasentia wears an ice-rimmed shield as a shield.

(1240/1242)(100%)(1268/1268)(standing)(civilized)(7 PM)(24350tnlvl)
Lasentia stops using an ice-rimmed shield.
Lasentia wears a mithril shield faced with dragonscales as a shield.

(1240/1242)(100%)(1268/1268)(standing)(civilized)(7 PM)(24350tnlvl) murder 4.
Your burst of energy MANGLES Golgotha!
Golgotha has a few scratches. (90% - 100%)

(1240/1242)(100%)(1268/1268)(fighting)(civilized)(7 PM)(24350tnlvl)
Golgotha utters the words, 'fireball'.
A ball of fire erupts from Golgotha's hands, engulfing the area in flames.
Golgotha fades into existence.
Golgotha's fireball roasts Lasentia.
Golgotha's fireball BROILS you!
Golgotha's fireball BROILS Loshnak!
You parry Golgotha's slice.
You parry Golgotha's slice.


You wear a belt of flaming demon scales about your waist.
You gasp and drop a belt of flaming demon scales as the flames begin to singe you.
Your burning hands smolders you!
The aura of heat around your body fades as you remove a belt of flaming demon scales.


A bug? Or something else? It has been working for 250-300 hours or so...

I'd need a lot more context, but this is possible and could be by design.