It may not be an actual problem but it's certainly strange.
Controller: KEYSTEP
Synth: Analog Lab 3 (Latest)
Instrument: DX7
Preset: Electro Beat
Situation: a dozen keys entered into the sequencer then played back at 1/4 time at slow rate.
Event: Synth now plays back the sequence at slower speed. The same occurs with other sequencer presets. Even if I re-select the preset, it continues playing at a slow rate.
Resolved: Increase keystep's sequencer to 1/32 time and modify rate until the preset starts playing the sequence at about the same speed as original.
It seems to me that a keystep sequencer can modify an AL3's preset sequencer's rate, even though I don't have a DX7 instrument. Will really have to explore this one in detail.
Is it a fluke, will it happen again when I reboot my computer? Who knows. Technically, there should be no reason for this to happen unless the software causes an interaction with the keystep's sequencer....