Is that a 220 Mega Ohm resistor (red red violet)!?!
If so, then such a big resistor can be considered an open circuit, because the oscilloscope's probe impedance is usually much lower (usually 1 Mega Ohm for x1 probes, or 10 Mega Ohms for x10 probes). 1 or 10 Mohm together with the few pF parasitic capacitance will make a great hardware RC debouncing circuit, so all you'll see on the oscilloscope will be a ramp.
If you want to see the dirt transitions of a switch, you need a much lower resistor. Try for example with a 2.2 Kohm (red red red), or lower. You'll see a ragged edge over about 5-50 ms, depending on the switch quality.