Interference with my circuit.

Made a video with the demonstration of the issue:

The circuit works only when I touch the metal plate on which the proto board rests. The board is isolated on it's own so I don't know why or how it's interfering with it.

Schematic as it is now wired?

Schematic as it is now wired?

6 Word and you hinted me towards the solution.

On this Shift register the OE pin is an active LOW and it is supposed to clear the register when pulled high. I thought that if I don't connect it to anything, it will remain low but I guess the interference is the reason it was supposed to go to ground.

Fixed it. Thank you.
Idiot out.

CMOS inputs float if not connected - the value isn’t well defined. You connect all CMOS
inputs to something.