Votes
0
Product:
Character Creator 5
Version:
5.03
Status:
Closed
Issue 12306
UE5 Auto Setup plugin does not create different subsurface profiles per character
If importing multiple different characters inside an unreal project, the characters share the same subsurface profiles.

Steps to reproduce:
- Have two different characters exported as an fbx file from CC5 for UE5.
- Have an empty UE5 project with the Auto Setup plugin installed
- Import the first character fbx (select HQ Shader when prompted)
- After import finishes an SSSProfile/[Character_1] folder should have been created, containing the characters subsurface profile assets
- Import the second character in the same folder as the first character (select HQ Shader when prompted)

Expected result:
Second character has subsurface profile assets stored in SSSProfile/[Character_2]

Actual result:
No subsurface profile assets have been created for the second character. Instead the materials of the second character are reusing the subsurface profile assets of the first character.

Environment:
- Unreal Engine 5.5.4
- Reallusion Auto Setup For Unreal 5.5 v1.41
OS: Windows 11
  •  3
  •  218
BugPipeline (Export/Import)Auto Setup for Unreal
Submitted bye3delyptos
1
COMMENTS (3)
Feedback Tracker Admin 
Hi Thomas,

Thank you for the detailed explanation — I understand what you mean now.

Based on your description, this behavior is expected in the current versions. Since both of your characters share identical SSSProfile data, the Auto Setup import process automatically detects matching data within the project and reuses the existing SSSProfile instead of generating a new one.

This mechanism was implemented because some users previously encountered import crashes. We discovered that Unreal Engine has a project-wide limit — specifically, Skin, Head, and SSS shaders all contain SSS color data, and UE cannot exceed the maximum of 255 unique SSS color entries.
To prevent reaching this limit and causing crashes, Auto Setup intentionally reuses identical SSSProfile assets whenever possible.

I trust this helps clarify your concern.
Please feel free to contact us again if you have any further questions — we’re here to help.

Kayla 
Reallusion
e3delyptos 
Hello Kayla,

Unfortunately for me it is still reproducible. I noticed that the SSS profile is only created if the values inside do not match with any SSS profile currently in the project. I can reproduce this behavior with the following: 

- Lets take CC5 Aaron as an example. I exported him using two different names, Aaron1 and Aaron2.
- Imported both fbx files Aaron1.fbx and Aaron2.fbx inside a clean UE 5.5.4 project.
- You can see in the attached screenshots that all assets have been created separately for Aaron1 and Aaron2 expect the SSSProfiles. Aaron2 shares the SSSProfiles with Aaron1.

Please note in this example I exported the same character twice with different names to ensure the subsurface settings of the characters material match in both imports. But this issue also happens with different characters as long as their subsurface settings are the same. 

Kind regards,
Thomas
Attachment:
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  • Screenshot 2025-11-21 114018.png
  • Screenshot 2025-11-21 114046.png
Feedback Tracker Admin 
Hi thomas.schoengrundner

Could you re-import it for me? This issue is likely related to the current settings.
Please change Material → Material Import Method to Do Not Create Material.
This will prevent the contents inside each character’s SSSProfile folder from being shared across different characters.

These adjustments should help resolve the issue on your side.
https://manual.reallusion.com/CC_and_IC_Auto_Setup_Plugin/ENU/CC_and_iC_Auto_Setup/1.4/02_for_Unreal/Importing_Character_FBX_File.htm

You may also refer to our manual for the remaining settings.

If you encounter any other issues, please feel free to contact us again.

Kayla
Reallusion
Attachment:
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