I can safely report that all of the same problems I've seen in 1.8e still exist in 1.8f. These problems are:

1. Keys listed in do-not-pass, sometimes pass to the other copies of Keyclone on other computers connected. This leads to the infamous run-away characters or spinning characters because the movement keys are usually not passed to the clones. But worse than that, it doesn't just pass it once, it keeps causing the other clones to continue to move until the same key is pressed on that clone.

2. Unable to select an item from inventory with a single click - also causes unable to cast buffs or heals to other players on your target. For some strange reason, this just happens. The only way to fix it is to either shut down and restart Keyclone, or press the 'override' button twice on the clone machines so that they can cast buffs and heals to other targets.

Neither of these problems exist if Keyclone is not being used.