Streaks/flicker when near Knight-Gaunt enemy type model

Screenwide streaks flickering for single frames in Steaming Springs area while Knight-Gaunt type enemy present or nearby. Irrelevant if active or corpse. Chilled Ground map mod active when issue was encountered. Bug id 2772492116. Graphics card is RTX 4070 Super, playing in Windowed Fullscreen and using DirectX 12.

EDIT: seems like it is not specific to the area or map mod, and instead it just happens whenever this enemy type is present.

To my eye, the streaks seem to have the texture of Knight-Gaunt's coat tails?