Videos shot on iPhone 12 and above phones default to HDR mode, so there is a preview mode when playing on an iPhone.
The playback player in the Qubii Pro app is different from the default player on the iPhone. Since the player does not support HDR, viewing the same file in the app may appear overexposed or overly bright.
After storing the original files back to the iPhone, playing them through the default iPhone player will restore the original color tones.
💡This situation may also occur when using Line or older versions of Mac & Windows due to the lack of HDR support in the player.