I’m using a USB C hub with an M1 iPad pro and Logic Pro. Using the NC the audio is plagued with stuttering, drop outs etc. and I’m baffled. This does not happen with other devices like an RME babyface Pro or even a cheapo Fender Mustang Micro (which BTW sounds awesome!). Ive concluded the NC just doesn’t want to work . I think Nearal needs to work on this !!
It works for everyone else so you likely have an issue with your configurations or worst case, an issue with your Nano. I don’t use MACos due to weird compatibility issues that pop up but I would ensure you are using the correct power specs for your power supply and if using a hub, make sure its powered. The last thing to review is your sample settings which may need to be adjusted to avoid stuttering and drop outs. If you really want NDSP support to work with you, I would recommend you sending an email to support@neuraldsp.com so they can log and help you resolve your issues.
For what it’s worth, when I travel I use the Nano straight into my M2 MacBook running Logic Pro as well, and it’s powered by a thunderbolt4 cable. I have never had any issue with using it as an audio interface. Couldn’t be an easier signal chain too:
Guitar > Nano Cortex (which is powered by the aforementioned usb-c thunderbolt4 cable) > any of the USB-C ports on the MacBook M2. Check out Using Nano Cortex as an audio interface - Neural DSP because it really does make it quite easy if you haven’t already read it. 'Twas helpful for me!
Full transparency though, as soon as I read “I’m using a USB C hub,” I immediately thought oh no... See, a good number of hubs are more for power distro and low-level I/O management. For recording something of quality, I don’t see them used really. They introduce latency (because we’re adding another electronic device into the signal path), and depending on your hub’s power rating, you might not be giving the Nano exactly what it needs (which is 9-12VDC with at least 600mA per the manual). The main culprit with hubs though are the bandwidth concerns. More ports means more bandwidth to share. Imagine having 4 phones plugged into a 4-port hub downloading a large file. They will take much longer to download said file than if they were plugged into 4 separate dedicated sources. So in summation, the other side of the equals sign for bandwidth issues is, unfortunately, a reduction in data transfer speeds. Sure, some hubs could probably work — after all, I don’t know what you have. But if things are glitchy and sounding like the sample rate is stuttering or your sound is dropping out… well, I blame the hub. This is just an educated guess though from what limited info you’ve shared.
Read the link and see if that solves anything, or like the good man MP_Mod says, follow up with support. Definitely go through the literature first to start though, if you haven’t already 
Best of luck!
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Ok so once again I am using a portable USB C hub that also has combi inputs for USB A. The lone USB C port also transfers data and charges the iPad. Nano Cortex is a 48 sample rate device so I’m running projects at a 48 hz sample rate in Logic Pro on the iPad. Curiously though the NC works flawlessly when I plug straight in with the supplied USB C cable. I can also record flawlessly (with the USB hub) using my other interface - a babyface pro. I highly doubt its the USB C hub. But I’m not convinced its the Nano Cortex either since it works easily plugged straight in without a USB hub . I’m tempted to drop some dough on an expensive powered USB hub like a Caldigi or something but if that doesn’t work either I’d be screwed out of some money … One more thing, I am powering the Nano C with a 1SPOT.
Thanks everyone! Much appreciated
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This thread is specific to the Nano Cortex etc.
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Try it without the Hub and/or with an external powersupply. 500 mA at least the nano needs. Some hubs don‘t give all mA at all outputs.
@SevenEmpires we should be clear here for anyone who stumbles across this thread: the Nano Cortex manual dictates “at least 600mA.” Let’s sway away from 500mA and stick to the manufacturer’s recs for power supply 
But it works with 500mA without any Problems…the rest is headroom😉 i think his Usb hub is the problem….
Works fine without the usb hub. Here’s the thing though. The same USB hub works flawlessly with other audio interfaces like my RME device and even a cheapo Fender rechargeable. I think its a driver problem
i dunno man, dsp gremlins perhaps