Concurrent Modification Exception in Snowplow Tracker

Github Issue: TrackerEvent.<init> - ConcurrentModificationException · Issue #692 · snowplow/snowplow-android-tracker · GitHub

Describe the bug
Fatal Exception: java.util.ConcurrentModificationException.
app is crashing due to above exception when adding the event to the tracker.

To Reproduce
unable to reproduce in dev environment, facing issue in prod, reported in the firebase crashlog.

Expected behavior
should not throw an error


log file
snowplow_crash_issue_86b88a0970251b5bc3b1863997677833_crash_session_66713D77028800011DFB8A366C99B6D9_DNE_0_v2_stacktrace.txt

Device information (please complete the following information):

  • Samsung Galaxy S9, OS: Android 10
  • Google Pixel 8 Pro, OS: Android 10
  • LGE Velvet,OS: Android 14
  • Huawei Y9 Prime 2019, OS: Android 10
  • Huawei P30 Pro, OS: Android 10
  • Xiaomi Redmi Note 10 5G, OS: Android 13