Graphic problems since last update

[Resonanc3]

Since the last update I'm having some graphic problems with my client (I'm using WoWFov.exe btw). Some of the aoe animations doesn't disappear when corresponging spell is no longer casted (such as druid's Hurricane), and some animations have duplicated frames (like the green goo in the tube in Naxxramas).

Here's the link to the gallery with brief descriptions: https://imgur.com/a/UHz3X5q

[Resonanc3]

This began somewhere between January 22th and January 27th.