Events not received on iPhone 15 (iOS 26.2) with @amplitude/analytics-react-native 1.5.37

youness

Hello,

I’m experiencing an issue with Amplitude in a React Native app (Expo prebuild).

Context:

• SDK: @amplitude /analytics-react-native version 1.5.37
• Platform: iOS
• Affected device: iPhone 15
• OS version: iOS 26.2
• Initialization options:
  • serverZone: "EU"
  • disableCookies: true
• Amplitude is initialized once at app startup.

Problem:
Events are correctly sent and visible in Amplitude:

• on my own iPhone,
• on the simulator,
• in development,
• in production,
• and via TestFlight on other devices.

However, on one specific device (iPhone 15 running iOS 26.2), no events are received at all in Amplitude, even though:

• the user actions that call track() are definitely executed,
• the app does not crash,
• there are no visible JS errors on the React Native side.

It looks like, on this device, events are not being uploaded or are failing silently.

Questions:

• Are there any known compatibility issues with iOS 26.2 or iPhone 15 for this SDK version?
• Is there a recommended way to enable native debug logs to diagnose upload failures?
• Are there any iOS privacy, network, or ATS-related settings that could block event delivery on specific devices only?

I can provide native logs if needed.

Thanks in advance for your help.

Best regards,
Youness

rachelavery

Hey Youness! Were you able to identify the issue and find a solution? If not, I'd be happy to look into this further for you. I checked on any known issues for iOS and are not seeing any at this time. Can you let me know if you have a VPN, firewall, or DNS filter active on the device? If you do (and especially if you have a custom setting made) they can sometimes block domains like *.amplitude.com.