Lesser Chant of Old Netheril gives +0 magic damage

[Wench]

Hey there!

I ran into a weird bug with the bard song Lesser Chant of Old Netheril. As a level 5 Bard when I sing it I give my party +0 magic damage. Screenshot attached.

I tried relogging and asked others in my party, switched weapons, nothing works. And it doesnt just say 0 either, when you hit something it says it's doing 0 damage.

Anymore questions just give me a poke! Happy to help.