Since patch 1.18, the Archer ability "Quickstride" can be bugged once activated to last for an indefinite amount of time by repeatedly entering and exiting active mode by spamming the "F" key. The buff will tick down to zero and stay at zero so long as the player is constantly entering and exiting active mode. It does disappear when the player stops spamming the key and returns to either a steady passive or active mode.