Why does playing video result in audio-video sync issues or lag when using the Xiaomi MIX Flip in a high-temperature environment?

Thank you for using Xiaomi products. Switching between the inner and outer screens causes the quick connect popup page to disappear and be recreated. This can disrupt the pairing process. The quick connection process is brief and sensitive to interruptions. Any disruption, such as switching screens, can cause the connection attempt to fail or require re-initiation.
To ensure a successful connection, complete the earphone pairing process before switching between screens. Once the connection is established, you can switch screens without affecting the pairing.