Location Permission Required
Shutter asks for Location permission when you connect to a camera.
Why It’s Needed
iOS requires Location permission to read the name of the Wi-Fi network (SSID) your iPhone is connected to. Shutter uses this to verify it’s connected to the camera’s Wi-Fi — not for tracking your location.
This is an Apple requirement that applies to all apps that read Wi-Fi network names.
Shutter never reads, stores or processes your location information.
Fix
Go to iOS Settings > Shutter > Location and select While Using the App. Make sure Precise Location is turned on — approximate location is not sufficient for reading the Wi-Fi network name.