Blender 4.1 App Link to 3D Coat Normal "Seam"

[pythno]

Hi all and happy new year!

I am having an issue with sending my model from Blender to 3D Coat via the App-Link plugin: There is a visible seam due to (I guess) incorrect normals
in 3D Coat:

When I click the "Z-Up coordinate system" on the import dialogue for App-Link in 3d-Coat the issue is gone but then my model is rotated by 90 degrees...

Someone having the same problem?

I am on Blender 4.3 (had the same issue on Blender 4.1) and 3D Coat 2024.31

 

PS: How to upload images? Could we have a feature where I can just copy pasta an image from the clipboard into this web-interface? Thanks.

EDIT: Now works by just drag and dropping the file. I think I just had to be approved as this is my first message here

[pythno]

I also just realized that this is only visible when using the light when in paint room. In render room this issue is gone. But it is a bit annoying to paint with this normal problem in paint room. Also, when I export back into Blender the normal is just fine, it seems.