Hello - I'm trying to move changes from my DEV instance to the QA instance (via the Registry), but it's giving me the following error: "Failed to update flow to new version due to java.lang.IllegalStateException: The input port name or identifier is not available to be added." I had a similar issue in the past where it wouldn't update to a new version, and due to deadlines I ended up just deleting the QA version and re-importing the flow from the registry. However, that approach means that dozens of variables have to be double checked and/or updated for the new environment. If this is going to keep happening, I'd rather try and get to the bottom of it, but haven't been able to find other examples of people having issues when updating flow versions using the registry. Currently running Nifi version 1.6. ... View more