What is causing my light level to drop?
As of Hotfix 3.0.1.3 , the Vesper of Radius is no longer disabled and can equipped
Fixed an issue where Warlocks could emit a damage impulse using Vesper of Radius without using their Rift charge.
- With this resolved, Vesper of Radius may once again be equipped.
After additional investigation, I discovered the culprit was the exotic chest plate [Vespur of Radius][1].
I went through and unequipped my gear with different ones. When I came to the chest plate, I was unable to re-equip Vesper of Radius. Supposedly overnight, Bungie had disabled this exotic armor piece due to newly discovered bugs.
Since the chest plate was effectively disabled, the light calculation was considering the power level as 0. Thus skewing my overall light level that's taken from the average of all equipped gear