I own the full version of LAMH too but here is the workflow I use for making LAMH iray hair for kitty: (if you have an older version of LAMH I strongly suggest downloading the updated version)
1. Select HW Cat in Scene.
2. Bring up the player window (top menu Window-> Panes-> Look at My Hair)
3. Hit the button “Attach Preset” (then scroll to where you saved the presets- I put them in Documents/Daz 3D/lookatmyhairAM/presets - I am on Mac)
4. Wait wait wait….
5. Once the guide hairs are generated, then assign a numeric value to number of hairs under “Hair Quantity”. Saiyaness suggests 1,200,000 for the Cat and I’ve been using 400,000 for the kitten to good effect. I didn’t change any of the other LAMH settings.
wait wait wait….
6. If using 3DL then one can play with the MAT generated (select i.e.: HiveWireHouseCat_Grp_0 under Scene and in Surfaces to modify the MAT) (I haven’t done any 3DL renders with it but that is how that works it seems)
7. If wanting to use Iray , next click the button “to OBJ”.
Wait a LONG time and follow/click the dialog boxes that appear.
Then once that is generated select HiveWireHouseCat_Grp_0 under Scene (will be in the HiveWireHouseCat LAMH Group) and Surfaces tab and then apply the Iray Uber Base Shader. Then modify that shader with Saiyaness’s suggested settings. Different lights and coats will need adjustment from those settings but they are a good place to start.
Then render!
LOL FWIW I am also having the same problem with the long hair preset in a render I am doing right now- will def let you know what I discover. ... VOILA! I also set the Glossy Layered Weight to 0 and reset what I talked about above and that did the trick.