NIFI 1.18.0 is not cleaning flow file from queue

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hi @MKothari,

Are you certain that your messages get transferred successfully? Based on your screenshot, I can see that no FlowFile got IN in the past 5 mins, meaning that your flow is not running, even though everything is green and you have no errors in your GUI.
I assume that the flowfile format matches whatever you have configured in your kafka. Have a look within PublishKafka and see if you do not have a strange scheduling set, causing you to see the number increasing instead of decreasing. Another thing you might try is stop both EvaluateJsonPath and PublishKafka and right click on your matched queue and open List Queue and see if there are any flowfile there and if so, on which node. Next, you can go on that node and further check the log file for possible error messages.