I noticed a small artifact. It shows up when the spline is in Adaptive mode, Sweep has Bevel and the whole thing is in Subdivision Surface. Sometimes I have seen this artifact on models that I just want to subdivide.
This bug shows up on the CPU and on the GPU.
S24.111, 3.3.7.1
Tried to reproduce it based on your screenshot, but I can't see any artifacts. Maybe I'm missing some specific settings which trigger the issue. Could you please send me the scene to take a look?
Does the artifact disappear if you add an Arnold tag to the Subdivision Surface object (which lets Cinema 4D do the subdivision instead of Arnold)?
"Does the artifact disappear if you add an Arnold tag to the Subdivision Surface object (which lets Cinema 4D do the subdivision instead of Arnold)? " - No(
https://www.swisstransfer.com/d/42a74d26-9e09-4560-aa6c-bd90ca0339c5