Configuring Nifi

[#1]

Is there something about configuring Nifi that needs to be done when setting up?

I ask because I've worked on a few different systems and the one I just set up seems to be having issues with Regex, prepend, and other items. 

[#2]

What version of NiFi? Is it the Apache standalone or the HDF version?

Also, are you saying you have other nifi nodes that work but the new one doesn't?

What does the ui say? Is there errors in nifi-app.log?