Does rendering send my book anywhere?

A render failed halfway. › ACX rejected my BookyAI Audio files with "RMS is too low. Raise the level of this file X dB", although the app showed the RMS inside the range. What should I do? › After updating to v1.6.3, my first audio render is re-doing all chapters. Why? › Are the introduction, prologue, appendices etc. narrated? ›