What Glitch Made Officer Flint Invincible in City of Heroes?

The City of Heroes bug that keeps popping up in speedruns and forum legends is still surprising players. This old glitch feels fresh because streamers rediscovered it during anniversary events.
What Glitch Made Officer Flint Invincible in City of Heroes? is an animation lock tied to his block effect and recovery frames. What Glitch Made Officer Flint Invincible in City of Heroes? involves canceling hit stun into his shield state. Studies indicate this mix of animation cancel and block recovery removes vulnerability windows entirely.
During that window, enemies cannot connect, and Flint acts like a wall of defense. You press block at the exact moment of impact to trigger the effect. Research shows timing must match the hit reaction frame for it to work consistently.
Mastering this small window changes how you approach every mission. Treat it as controlled blocking that resets threat instantly.
Is this glitch still allowed in current playtests?
Most community events accept it, but live leagues often block it with server patches.
Does this work on every server version?
Yes, it appears on live and test servers whenever Flint's block animations remain unchanged.









