UE 5.4 - Groom - Groom lags / is delayed

Development Character & Animation
, ,
1

Hi all,

I am having trouble with Grooms in 5.4.

Whether it is the Hair Groom, Eyebrows or just Fuzz, it all lags or is delayed by 1 to 2 frames.
It is very noticable when you start Simulation in the editor and rotate / move the Metahuman.
The groom basically stays behind / rotates a few milliseconds after the mesh.

This leads to obvious problems. Eyebrows basically swim accross the face when the mesh rotates.

I am not sure what’s the root cause. I have the same setup in 5.3 and these problems do not occur.

If anyone can help, I would be very grateful.

2

Just as a showcase, here is an example video:

Maybe someone can identify what they changed with UE 5.4, because that problem was not present in 5.3