GFX/Visual Bug in the last scene of final MSQ Quest

I've already submitted this using the in-game form, but here is the visual supplementary image that shows better than what text can describe.

Replication steps:

1. Complete Voidsent Dais (Normal).
2. Complete the dialog and quest line for the Patch 6.4 MSQ.
3. In the final scene where Golbez is addressing the new dark Voidsent, observe the space just to the top-left if his clenched right-fist.

Expected: Normal scenery is expected, relative to the surroundings.
Actual: A purple rhomboidal shape is present. It is slim. It does not belong in the scene.

See attached.

https://drive.google.com/file/d/1u8i...ew?usp=sharing

https://drive.google.com/file/d/1u8i...ew?usp=sharing