Still fairly new to CC3 so apologies if I'm being stupid, but I've not previously had a problem with this (when using CC3.2, AutoSetup 1.02 and same version of Unity, i.e. 2019.3)
Followed the optimisation recommendations, converted character body to a GameBase and swapped eyes to GameEyes_OneUV. This is the result in CC3:
75% of original size (was 672x19) - Click to enlarge

Imported into Unity 2019.3.13 using AutoSetup 1.1 (URP package, as project is set to use that render pipeline) I get this:
75% of original size (was 672x19) - Click to enlarge
Not only is the mesh not smoothed properly but the face actually looks different (eye and nose are different proportions somehow).
[as a minor point the T-Shirt material is also wrong, but that's not what I'm most worried about]
Import settings in Unity are set to this (by the AutoSetUp I assume?):
75% of original size (was 672x19) - Click to enlarge
I tried changing the smoothness Source but it didn't help.

As an additional sanity check, I then imported the unoptimised character (original body but GameEyes). Got this:
75% of original size (was 672x19) - Click to enlarge
I can tweak the overzealous normals (but surprised I'd have to...) and the eyes are doing that thing I've seen mentioned in the docs that Daz characters are meant to do if not prepared properly. But this is all 100% CC3.3

Am I doing something massively wrong, or are these CC3+ meshes not quite ready for prime time in Unity?

                                    

Unity Virtual Reality Developer

Hi everyone, 

Hi gametuturiaisone,

We collected the issues from recent posts, and made a report yesterday.
https://forum.reallusion.com/451720/Auto-Setup-11-for-Unity-compatible-with-CC-33-iClone-78

Here is the feedback for the issue you asked:

Cause: Diffuse profile isn't automatically assigned for skin; it displays as "None".
Workaround: We are still searching the solution to set diffuse profile via Unity C#, before it fixed, please manually set to the correct one.
75% of original size (was 672x19) - Click to enlarge

That's normal, add the skin profile or turn off sub surface scattering. You can read about it in the docs.

Hi When i Issert my caracher on unity the skin is green ... Plis can anyone help plis ? 
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thx than it is a not very logical version numbering system...

This is the latest version, the betas are the older versions. However we just got this news today:

To be compatible with the latest released version of Unity (2019.3) and Unreal Engine (4.25), we will release new versions of Unity Auto Setup and Unreal Auto Setup this month (May).
The new version of Auto Setup tools will be compatible with Character Creator 3.22 and iClone 7.22.

The specific release date is not firmed yet, please wait for further announcement, thank you!

maybe I'm blind but I can't find the download link for beta 2.0 it always just refers me to the main download site https://www.reallusion.com/character-creator/unity-auto-setup.html where there is just version 1.01 to download 
please if you could supply us with the beta for HDR pipeline test would be awesome...

Hi alex_ey,

It seems that the error message is from using the incorrect package for template you are choosing. Can you help to double check? Thanks!

75% of original size (was 672x19) - Click to enlarge