Hi everyone,
Sorry to bump the topic but I need your help one more time.
First of all I tried the tutorial above and DLSS didn't fix the issue with the hair physics for my character. Actually the guy who made this tutorial shared a pdf where it talks about this issue and confirms that hair physics doesn't support Temporal Sampling.

So I made a test with Spatial Samples at 64 and leave Temporal at 1 plus adding the console variables suggested in the Unreal official documentation and the result is fantastic.
However I'm now facing an new problem. This time with subdivision mesh.
When I activate the subdivision mesh in iclone to get a smoother character the hair goes crazy again once imported into Unreal but this time it has nothing to do with movie render queue cos the issue happens as soon as I hit the simulation button.
If I keep the subdivision mesh off everything is fine but when it's activated it's a mess.
OFF

Subdivision lvl 1
Both times I made sure to adjust the collision also I worked on the ClothingData_1 just like explained in the official tutorial of Reallusion but even after many many tests I couldn't manager to fix it. :crying:

Has anyone already faced this issue and knows the solution ?
Thanks a lot for your time.