This is still happpening to me, my script doesn't modify RPC, touch position or anything.
[23:45:42] [RPC] << New spawn: (151117492862882576072704.00; 1642.20; -2334.48)
[23:45:42] [RPC] << New spawn: (151117492862882576072704.00; 1642.20; -2334.48)
[23:45:42] [RPC] << New spawn: (151117492862882576072704.00; -2201.69; 2794.35)
My actual position according to the server:
X:[-2201.6] Y:[2794.3] Z:[168.0]
I end up spawning in the right X/Y but after each time New Spawn is called my Z position increases by ~5 every time, I end up flying in the air.