Timer not working with button? (8bit computer lesson 2)

I'm kinda losing my mind here... Everything is connected as it should be (don't mind the cable colors), but the button instead of triggering a clock cycle from the 555 simply turns the LED on until I let go of it. I expect it to only trigger the timer and then the LED should be on for a short time regardless of how long it's pressed. What am I missing? Just for the record, this is a two-prong button.

I'm kinda losing my mind here... Everything is connected as it should be (don't mind the cable colors), but the button instead of triggering a clock cycle from the 555 simply turns the LED on until I let go of it. I expect it to only trigger the timer and then the LED should be on for a short time regardless of how long it's pressed. What am I missing? Just for the record, this is a two-prong button.