Ok so after many failed attempts I think I've found the cause of the problem and the settings that will work on a DAW.
So first things first, the Midi Sync option:
By default is set to internal and because i'm in Ableton Live i've changed it to "Midi" which in this particular case is not ideal because for the sequencer to properlly work it needs to be set to "Internal"... So the trick here is to set it to "Both" this way it will let you sequence and use the arp but in sync with Live.
This was probably one of the reasons why i wasn't getting any sound from the unit at some point in time. Maybe I've selected a sound that had arp or sequencer activated so the sound wouldn't come out.
About the other option named "Local".
By default local is set to "On" and it should be set to "Off" in case you want to either automate parameters from the unit or from Ableton.
Diggin on M4L forum I found a device to control the Microfreak but there was a parameter missing which maybe was also causing the audio to stop. The parameter is the "Filter Amount" knob which is midi cc 26. I've added it to the M4L device to ensure that Live's midi ctr lane wouldn't drop it to 0.
The person who made the device is called "dettenbach" and you can find it here:
https://maxforlive.com/library/device/5485/arturia-microfreakIn my case I've just added the "Filter Amount" so no credits taken here. If you want this version I've included it in the link below.
Last but not least, the Microfreak seems to work best if connect with midi cables instead of USB. The reaosn for this maybe due to usb getting latency and resulting in midi loops or midi echo.
In my case using usb it behaved like this so instead i switched to midi cables and the loops and echos stoped.
There are still many things to add regarding this amazing synth, specially in the midi implementation section which lacks more parameters available for automation.
Also and this might be somehow critical at this point, I've noticed that some midi CC parameters are randomly been sent specially when the sequencer is activated.
Hope Arturia quickly fixes this on the next update.
Although new oscillators, wavetables and other stuff is great to have, maybe there are some steps behind to be taken in order to fix some crucial aspects to ensure a great user experience.
Also it would be great if Arturia made an editor for it to work with Daws making life a lot more easy to users and future updates.
Switching presets from Ableton using program changes in some cases don't quickly recall the new preset so in order to ensure that it will load, the first midi note needs to be a little after the first beat.
Anyway try this and let me know what you think.
Best regards