Apparently correct D-flipflop implementation breaking my circuit. When using built-in D-flipflop, the circuit operates correctly - Electrical Engineering Stack Exchange
Design D Flip Flop in Logisim - YouTube
Logisim Lab
Solved Here is the circuit shown in Fig. 3 using JK | Chegg.com
How do I transition from one state to another with d-flip-flops? (digital lock) - Electrical Engineering Stack Exchange
Logisim Help - Using Custom D Flip Flop - Electrical Engineering Stack Exchange