Start Stop messages problem when startin Live 10

[debojé]

Hello everybody. Just got ableton 10 live and first contact with this software. Looks and works quite well. But: one thing I really have problems with is, when I have a loop anywhere in the arrangement (not at the very beginning), the start stop command (Space key) works as usual for ableton but if I control my external sequencer hardware device with this command it continues where it stoped before when pressing the space key again for starting new.
Is there a way to send a real and only start message when doing this?
Thank you for any helpful advise.
regards

[[jur]]

What's your hardware? And what kind of midi messages are you using to communicate with it? With which kind if interface?

[TLW]

MIDI start/stop messages are tied to MIDI clock, so a MIDI start gets sent when the MIDI master clock, usually configured to be the DAW - i.e. Live, is told to play and a MIDI stop when the master clock device is told to stop playing.

There is also a MIDI Song Pointer Position (SPP) command which can be sent along with MIDI clock start, and if the sequencer understands SPP the sequencer should start playback at the bar/beat count the DAW is at when you hit “play”. Whether SPP works or not depends on both the DAW sending the command and the sequencer understanding it - and not all do.

It might be useful if you say what your sequencer is.