Inconsistent log delivery delays

[dalnoki]

Platform

Flutter Mobile iOS

Obfuscation

Enabled

Debug Info

Enabled

Doctor

Dart 3.9.2

Version

sentry_flutter 9.9.2 (Dart sentry 9.9.2)

Steps to Reproduce

The customer is sending logs from a Flutter application to Sentry using the official Flutter SDK. They’ve tested both the default transport behavior and enabling eagerFlush (custom implementation, to reduce latency, they call an internal SDK API after each log capture) but they're seeing two related issues around log delivery timing and timestamps.

Main issues:

1. Inconsistent log delivery delays - some logs arrive in Sentry almost immediately, but others are delayed significantly, sometimes up to ~30 minutes.

This happens intermittently for similar log events and usage patterns. The behavior is the same with default settings and with eagerFlush enabled. For additional details, please see the internal Linear issue.

Expected Result

Logs should be delivered to Sentry in a timely and reasonably consistent manne

Actual Result

Log delivery is inconsistent, with delays of up to ~30 minutes.

Are you willing to submit a PR?

None

[linear]

DART-295

[buenaflor]

I am not sure if the SDK is the issue here. since they flush logs immediately and it doesn't arrive within minutes it's likely some ingestion issue, I'll double check

[buenaflor]

they can check with spotlight to make sure its not an ingestion issue