Second trap is well known for breaking, and ruining the round for any player that hasn't crossed over yet. I dunno what makes the bug occur, but I'm guessing it's when more than 1 person crosses at the same time due to obvious platform issues with multiple people.
Third trap is also bugged. If someone stands on the front gate, when it's supposed to rise, it will bug out and permanently rise after the trap is done. It's only supposed to rise and trap players caught, but ruins rounds too for any non-pyros.
http://cloud-4.steampowered.com/ugc/487823914767821338/EC5EBF5C7D9D5A44BBB727F19D662CD6F480ED34/http://cloud-2.steampowered.com/ugc/487823914767946777/18B5C831F0942CEC35D1CA21958101A876561501/(Idk how to work steam screenshots well, if this doesn't show well I'll figure something else)
Any plans to fix it? I dunno what you would do to fix the second trap, but the fix for the third trap seems pretty obvious by making the gate kill if you touch the tops.