I was able to replicate my problem using the following configuration: Flow The MergeContent configuration is as follows MergeContent Properties MergeContent Scheduling Although the conditions of the MergeContent processor are met, it does not concatenate the incoming flowfiles. The last version in which the above flow worked was version 1.15.3. Any suggestions on how to solve this? Is this a bug? P.S.: The flow is so designed due to a dependency on only writing one file per day. ... View more