@AlexLasecki  The issue here is unrelated to the copy and paste action taken.  There is a bug in the code where the jsonPath cache is not cleared when the property value is changed after it has been initially set.  So the same issue happens even if you do not copy and paste a splitJson processor configured with json path property value.  All you need to do is change the json path value after after already having a value set.  Original json path property value that is cached still gets used. The following bug jira has been created and work is already in progress to address the issue.  https://issues.apache.org/jira/browse/NIFI-10998 For now as a workaround, you'll need to create a new SplitJson processor anytime you want to change the json path property value. If you found that the provided solution(s) assisted you with your query, please take a moment to login and click Accept as Solution below each response that helped. Thank you, Matt ... View more