Ok... im making a trash can in C4D... and i make a selection right? and i extrude it a lil bit... then when im done extruding... i cant select anything else... why is this? does anyone know?!
In my expeirence with moddling... Maybe the way that the vertices line up is "impossible" and you cannot do it. It happens... Im not familaure with C4d, but can you check this?