Firmware version: 1.0.0.915
Sync Source is set to MIDI, clock signal is coming from an MPC One, no DAW involved.
It hasn't stopped responding to MIDI clock this morning, but now with sync set to MIDI, it's behaving as if sync is set to auto and generating it's own clock when it doesn't receive a clock signal. Last night it was behaving as if sync was getting switched to local and ignoring MIDI clock all together.
It's also outputting a MIDI clock even when it receives clock which I don't think it should do. (The MicroFreak does this as well and I've been filtering it out all this time to prevent multiple clocks across the MIDI bus)
I went thru the manual to make sure I wasn't missing something and noticed the "MIDI Seq/Synth" setting as well as "Transport Receive" do not exist on my machine.