If you run LumaBooth on an iPad or iPhone, we recommend holding off on updating to iOS and iPadOS 27 for now. iOS 27.0 includes a printing bug that can stop your booth from printing partway through an event.
What’s Happening
On iOS 27.0, the first print after opening LumaBooth comes out as normal. The next print never finishes: the app waits on “printing” and nothing comes out of the printer. Closing and reopening LumaBooth gets you exactly one more print before it happens again.
It affects every AirPrint setup we’ve seen, including:
- DNP printers connected through the DNP WCM Plus
- Canon SELPHY printers on Wi-Fi
- Aircast, Airkonv and other AirPrint print servers
- Shared printers on a Windows PC
It’s an iOS Bug, Not Your Printer
This is a bug in iOS 27.0 itself, not in LumaBooth or your printer. The same app and the same printers work normally on iOS 26, and other app developers are seeing the same problem with their own printers.
We’ve reported it to Apple with a detailed report, and we’re waiting on Apple for a fix. We’ve seen this before: iOS 13 had a very similar printing bug, which Apple fixed after we reported it.
What To Do Before Your Next Event
- Not updated yet? Stay on iOS 26 for now. Turn off automatic updates in Settings > General > Software Update > Automatic Updates so your iPad doesn’t update on its own before a gig.
- Already on iOS 27? One customer who went back to iOS 26 is printing normally again, and printing works normally for nearly everyone on iOS 26. Apple only allows downgrading for a limited time after a release, so if you need to roll back, do it soon. Otherwise, use a device that’s still on iOS 26 for events where printing matters.
We’ll Keep You Posted
We’ll update this post as soon as Apple releases a fix, or if we find a way to work around it inside LumaBooth. Thanks for your patience, and happy shooting!