6 years have passed and nothing changed: Hiby is still the only app that's unable to sort the tracks within a folder by their track number. I still have the very same folder on my NAS, and Hiby still sorts tracks by their title. Same goes for every folder btw. And every other software, including bubbleupnp/bubbleds, mconnect, vlc, hificast, mediamonkey (etc) are able to sort the tracks by their track number. I could do the same screenshots once again and Hiby would still be the odd one out. It might be some incompatibility with minidlna, it still wouldn't explain why every single app besides Hiby can act like expected.
Sound quality is still nice, but the fact that 6 years wasn't enough to fix a trivial issue like that is pure disappointment. I've had a Hiby R3, liked the form factor, the features and the sound, sold it because of the software experience. No network sources are available with Hiby Link, huh? Just an other
interesting feature in Hibyland. Anyway... See you in 6 years I guess.