Router and Copy giving error - Failed to make copy

I am getting this error with Copy and Router . Support has not responded yet, thought will ask here and see if someone else had the same issue and if any resolutions

Failed to make copy, detail: null, java.util.ConcurrentModificationException

Resolution:

Please check if all objects in the document hierarchy are serializable. <a href=“http://en.wikipedia.org/wiki/Serialization”>Click here</a> for more information on serialization.

Reason:

Failed to make copy, detail: null, java.util.ConcurrentModificationException

Hi Friend,

I am facing the same issue, Do you get any solution/workaround for this issue.

Thanks,
Deepak