Since this thread is about unstable USB connections and has some useful info about USB cables in general, I thought I'd bump it with a new observation:
Having upgraded my Mac collection with the new 15" MacBook Air, I also had to get quite a load of new USB-C cables, adapters, you name it. After testing a few, I decided to explore the boundaries by ordering a 4 m (!) long Delock USB 2.0 B-to-C, i.e. compatible with a whole bunch of USB devices starting with antiquities like an Epson Perfection 1240 scanner, M-Audio Oxygen8 (v1) keyboard, etc. etc. up to my new Roland Octa-Capture, and of course… drum roll, HX Stomp.
It works!
4 m long! Amazing. I've been using it since a few weeks without any issues.
In Switzerland, it's available for as low as CHF 13 ≈ EUR 15.