iPadOS 27 changes how AirPlay handles presentations on iPad. When a presenter switches apps, the external display now shows the entire iPad screen rather than keeping the presentation in place. This can reveal private notes or other windows the presenter never meant to share with their audience.
The behavior appears whenever multiple windows are open, with or without Stage Manager enabled. Tapping outside the presenting app exposes other content on the external display. Teddy Svoronos, a teacher, noticed the problem while presenting from his iPad. He said his students could see his notes on who he planned to call on, along with poll results meant to stay hidden, and that jarring windows popping up and disappearing distracted them from the lesson.
Other users have reported the same issue. A Reddit user named try1231 shared a short video showing it, and AppleInsider staff reproduced the behavior. In iPadOS 26, swiping up and selecting a supported app from the Dock let presenters transfer presentation control. In iPadOS 27, control instead goes to the most recently tapped app, which disrupts multitasking during an AirPlay presentation. Recovery depends on the app. Goodnotes restores its presenter view when the user taps back into its window, Keynote exits the presentation entirely, and PowerPoint requires restarting the presentation.
AppleInsider is not certain this is a bug, given how consistently it occurs, and notes that the app developers are not at fault. Readers who are affected are encouraged to report the issue to Apple.
Source: AppleInsider · Summarized by HeadlinesBriefing