Fixes (v1 devices — WH-1000XM4 / XM3 / MDR-XB950BT)
Selecting Ambient Sound snapped back to Noise Cancelling, and the level slider wouldn't hold while dragging.
Cause: on v1 devices the ambient read-back used a v2-style reply layout that isn't valid for v1, so the 2-second poll kept overwriting your selection with a mis-parsed state. Now v1 settings are trusted as-set (like the original client did) — the app still pings the headset to keep it powered on, but no longer clobbers your NC/Ambient/level choice. Reported by u/More_Way_6784. 🙏
brew upgrade --cask sonybridge