CINEVERSITY

Hm, I noticed now that when I uncheck UV Overlay and save the layout as the startup layout, that viewport filter option is not saved.
After restarting Cinema 4D, UV Overlay is still on, and I have to uncheck it manually.

It turns out that viewport settings are saved in the default C4D scene. Resaving the default scene with UV Overlay unchecked solves the problem.

It looks like the behaviour of the loft or cloth surface have changed
Options are not use the bevel in the loft, but add extra circles to make that part.
or maybe us a Lathe

Try disabling the Continuous Option in the emission tab.
When you enable it it will also emit particles within the duration of a single frame. When you disable it it will emit exactly on the start of a frame.