Users of Pro Tools 11 are reporting a step input bug which seems to be getting worse rather than better as each update of Pro Tools 11 is released.
Some may think that step input is something from the dark ages of early MIDI, but for many composers MIDI step input is the only sure-fire way of getting accurate rock-solid MIDI performances.
In the release version of Pro Tools 11 some users were reporting step input working intermittently. In 11.1.2 step input seems to have stopped working altogether for some and for others it still has issues with it working on the right tracks.
Watch this space.