App crashing with ConcurrentModificationException in Mixpanel SDK code

[ori-6over6]

Hey,

We are seeing crashes in firebase crashlytics that originate in Mixpanel SDK code.
We use version 5.8.4.

This is the relevant part of the stacktrace:

Fatal Exception: java.util.ConcurrentModificationException
       at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:757)
       at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:780)
       at com.mixpanel.android.mpmetrics.MixpanelAPI.track(MixpanelAPI.java:2885)
       at com.mixpanel.android.mpmetrics.MixpanelAPI.track(MixpanelAPI.java:868)

Could you please take a look?

Thanks in advance!

[zihejia]

Hi @ori-6over6 , did you track any properties on the track call? Is there any possibility you modify the properties on another thread during the track call?

[zihejia]

I’m closing this issue because it has been inactive for a few months. Please reopen if you still encounter this issue.