My new toilet is not flushing paper down but again like below if it's at the bottom it flushes through. My toilet is back to the wall with the pipe turning Right in the Horizontal position into the main stack. My vent pipe is clear as this has been checked.Water seems to go away fine but the paper just floats at the top...

If the tank level's 1/2"
beneath the top of the white overflow tube and you have no blockages then I might have the answer. In my capacity as shop trouble shooter I began to run into a slew of complaints on our new construction that were just like yours. I knew they all couldn't be " bad toilets" so I went looking for the cause. I found that when installing the new bowl that the wax ring had been forced out into the discharge pipe and blocking the free flow of water. When the water hit it a backpressure was set up preventing the siphon that makes a good flush and the solids just swirled around while the water went slowly down. I had to set up meeting with our plumbers and show them the problem and how to fix it. When you set the bowl, put the wax seal down on the flat side to the closet flange. Then take your hands and bevel the wax seal outward so that when you set a bowl on it the wax is forced out instead of in blocking the flush. The customer complaints stopped and I had less work to do. Try molding the wax seal so it doesn't choke down on the flush. Good luck, Tom

My Flush is working fine but I will change the syphon in the cistern, it's so strange that anything low in the toilet flushes but once it flloats on top i.e. paper it just doesn't go away.I also made sure my flush pipe wasn't obstructed.

Does it matter what height the toilet is to the 4 Inch waste pipe, mine is about an 1/2 inch lower, and then running down into the stack. I never new a toilet could be such a pain, lol... But 'm glad it's only one...