Anti magic zones vs items

[krickerd]

In non legacy BTI, when I hit an anti-magic zone, regular active spells such as Sorcerer Sight or Mystic Armor will drop out but if those same spells are activated using items such as a lore helm, or the Ybbarrashield, they do not get negated and are still active. Was this intentional or is it a bug?

[kaypy]

There was a bit of back and forth in how anti-magic and item effects worked, eventually settling on what you see.

One side effect is that all magic item buffs are of lesser duration than their spell counterparts, and no items give permanent effects. (So you can't just use an item of BASP and leave that up the entire game anymore)