Source Audio make some really nice kit that works amazingly well. BUT sourcing a set of 3rd party 3.5mm TRRS cables that fully match their specifications can be a problem.
Another common issue is undervolting, SA gear is very sensitive to PSU / Power mismatches. I bought a very expensive and prestigious Stymon PSU system only to find that it has a slow power ramp up on boot. This really messes with SA pedals. That's on Strymon, not SA because I'm using an unvalidated PSU and I'm assuming that it will work. Strymon had effectively sold a PSU that natively doesn't work as well as it does powering it's own brand of pedals. Lessons learned...next time, I go and get Cioks branded PSU's.
Another issue I've recently had is that I was getting Midi chatter over the audio. If I turned off my Neuro Hub, the audio chatter dissapeared. So one would think that it was an issue with the Neuro hub, it actually was an issue with my Boss ES-5. If I don't use the input and output buffers...then it get Midi chatter down the audio. There's obviously some kind of filter going on in the buffers. Was it the Neuro hub? No, that was where the fault was seen, not where the fault originated. A bit like back pain...that's where the pain is registered, not necessarily where the underlying cause is centred.
if some one was to ask me the three most common symptoms / issues with the Neuro Hub (or any Source Audio gear) I would label them
1) Undervolting - try the supplied PSU and see if it still occurrs.
2) 3rd party cabling issues - try SA supplied cables.
3) take away all the other components from the power, signal chain, midi chain and see if they are the root cause of the problem.
I'm glad you have a working Source Audio eco-system, when these teething prolems are ironed out and working...it works REALLY well. With one scene, you can set up 5 pedals via midi. That is fast, efficient and reliable.