I’m having a similar issue, the color spread feature works inside of forge though in actual custom games it auto defaults to 30 again regardless of the value I had it at inside of forge.
Been having the same problem. I’m assuming it will be fixed but who knows when.
Until then, I would recommend either just placing the cylinders on your map and simply leave them uncolored or textured and wait for the patch, OR just use full primitive rings to create a façade of there actually being a cylinder.
Thank you for the idea, very smart, I ended up using a barrel in place of it as I only needed a flat cylinder and the spheres have a “mound” to them when flattened.