Stroke and Cinema 4D render
When a stroke is applied to a shape on a 3D layer and the Cinema 4D renderer is selected, when trim paths is used the width of the stroke changes. When the Classic 3D renderer is used, this does not happen.
Thanks for filing this bug report, and for sending us the project file.
Our engineers are examining the problem. Regarding the project you sent, they gave this feedback:
This problem is independent of using Trim Paths.
The problem can occur with shapes or text converted to Shapes, as in the provided project. With the CINEMA 4D renderer the Shape stroke width does not match the Classic 3D renderer – there is both a stroke symmetry shift around the path, and size can vary as well.
The stroke mismatch is typically quite small. However, the provided project has Transform > Scale set to over 300%, thereby exaggerating the problem.
To work around this you could avoid using a large scale value on the shape layer. Adding scale per shape path almost eliminates the problem visually, but is impractical to do for each shape.
Another workaround could be to maybe prep the .eps file to have a text size that avoids the need to scale the layer in After Effects after converting to shape.