Two questions
1- The denoise option work with the multipass?
2- ies lights are active?... because i use the c4d ies lights but lightmix dont recognize them
@1 - yes, it works with multipass.
when activated, it will denoise ONLY the Beautypass and not the Lightmix pass.
@2 - those lights are not recognized by the Lightmix for several reasons.. first you need to check if you assigned a corona light tag onto the actual light objet, secondly you have to assign each and every single light to a LightSelect pass (you can pick as many lights as you want for each LightSelect pass)
so for example:
a random interior room would have two IES-Lights and one area light to illuminate the room. in order to be able to change lightcolor/intensity or even turn the area or ies lights off
after rendering within the LightMix, you would add two LightSelect passes to the multipass layers and select the arealight on one of them, the two ies lights would be selected within the second LightSelect pass. dont forget to check the
Apply denoising option on both passes for a better result.