I have encountered several instances now of strange mob behaviour with this one particular enemy. I have provided links to clips from my twitch stream showing a couple of the issues:
Basically this particular enemy will not recognise the player as aggressive and will not attack even in very close threat range. In some cases the enemy seems to want to move slightly and then rubber-bands back to its spawn anchor. Also it seems that this particular enemy in some cases interacts weirdly with the environment around it, as seen in the videos. I will post more images and links to this topic as I find them if it will help you.
I did look for instances of this already being reported in the forum but was unable to see it. If it has already been reported then I apologise for wasting your time.
I will link the recommended player data files and dxdiag file below:
player.log - https://drive.google.com/file/d/1r2MZVQQJ3pU_9qmhNyiKKiNxLodeXu13/view?usp=drive_link
Player-prev.log - https://drive.google.com/file/d/1lFkSBlVTrc3o8T5sdTdBXbMm3f6iv2a0/view?usp=drive_link
DxDiag.txt - https://drive.google.com/file/d/1TgpfVzvipoSNK93wBjHOMMrbfKP--Cy1/view?usp=drive_link