My Udo is connected through USB, when I send midi notes from Ableton the synth hangs up lots of times.
First I get something like latenty noises later when I turn the controls and knobs of the synth it stop reacting.
Does anyone have similar behaviour?
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I experience the same thing. I’m using Ableton in a setup with many other midi devices and wonder if one is sending midi that the Super 6 Desktop isn’t expecting.
Hello
I experience the same thing too with a MIDI Keyboard (Arturia Keystep 37). 
There is an open topic on MIDI issues here : ARP Not Responsive in ABLETON After I Stop Track
Regards
I think I got it fixed:
What helped was this:
“Make sure to double check that you don’t have some kind of MIDI loop happening. A good way to avoid it is to turn local mode off on the synth. Yes you have latency by monitoring though the software, but you can’t loop back on accident then.”
I’m having the same issue. I’m on the latest firmware. 0.53. I’m using the module version.
I play midi notes to it and sliders/knobs seem to work fine. But then I stop and change the midi notes and then sliders such as the FREQ/cuttoff are unresponsive. Some sliders work, such as RES, and if I use them, it seems to get the unresponsive FREQ one working again.
Turning local mode off obviously won’t help this issue as you disable all hands-on controls.
I’m using MIDI over the USB connection on a separate midi port (6) - no midi loops. I also tried this with only the midi cables, and still had the issue.
Definitely seems like a bug
I have a similar problem. When I connect the Super 6 to Ableton via USB, I often (but not always) experience a delay when changing parameters directly on the synth. The changes take a long time to become audible, and they also sound strange in terms of pitch. The synth is playing a MIDI sequence created in Ableton. It is very frustrating. Switching On/Off makes no difference.
I was in contact with the official support from UDO.
this is what they told me:
Please ensure that you’ve set up your Super 6 in Ableton according to this article:
https://udo-audio.zendesk.com/hc/en-gb/articles/15001331944092-Ableton-Live
On top of this, double-check the MIDI settings on the Super 6 and make sure that NRPN mode is disabled:
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Press SHIFT to enter the global settings.
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Press the button labelled TX/TX E and make sure that buttons 1 (MIDI CC Transmit) and 2 (MIDI CC Receive) are lit while the LED of button 3 (NRPN mode) is flashing. This is important, since Ableton Live doesn’t natively support NRPN messages.
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Once you’ve adjusted the settings, press SHIFT again to exit the global settings.
i had no time to try it but i think thats the solution! 
cheers!
And here goes off your high resolution sampling/reading of your sliders and knobs…
Without NRPN, you can easily hear zipping/stepping noises while changing slider position as it seems the physical panel is sending 128 values by default, and so pilots the synth engine with these, which is in my opinion, a very very bad implementation and should be remade completely.
Panel to synth engine messages in full resolution all the time, parameters of MIDI completely independent, piloting only HOW is downgraded/subsampled the parameters when sending out MIDI commands. Isn’t it the way it should be done in the first place?
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so you are basicly saying, that the super 6 is not playable thrue a DAW like it should be possible with any synth in this pricerange? i cant imagine that.
do you know, what you are talking about? did you tried it? cheers!
No no nothing of this sort. I was referring to another problem where setting midi hires is mandatory to remove low res reading of the front panel.