ProtoOS BETA 1.21.0 - 8/18/26
• Adds ability to control the volume of USB audio devices on Proto Player device
• Adds a user toggle to rotate the HDMI input signal
• Resolves module-suspend-on-idle load errors
• Resolves soundbar camera firmware update hangs
• Resolves system freezes when external HDMI playback is interrupted by a Proto App
• Resolves blue screen issues when scheduled App playback interrupts HDMI playback
• Resolves blue screen issues when a stream is interrupted by content during the first seconds after stream playback starts from Proto Studio
• Resolves return feed not starting when a stream with connected Bluetooth audio interrupts other playback
• Resolves black screen issues when Live Beam interrupts comment playback
• Resolves the Lock/Settings icon overlapping the Tap to Play element on the Idle screen on M and M2 devices