Some graphical issues in the latest build

I'm not sure if this is just me or everyone, but as of the latest build I'm experiencing some graphical troubles on certain effects, in particular something related to lightning on a small scale. For example, arcing small lightning effects from eyes or mounts, like

- Ironbound and rusted proto-drake
- The iron dwarf model from the deathbringer's will proc and iron boot flask
- The eyes and some borders of Mimiron's Head mount

In place or where there should be either some small effects or some kind of lighting, there's instead bright white graphical glitches. There's a similar issue on some of the catapults around Orgrimmar, in particular those dotted along the path to the rear gate. The only difference here is that the graphical glitch glow is red/yellow/orange instead of bright white.