After configuring the NiFi Registery and versioning flows the Registry works fine. However, after restarting the NiFI cluster the Registry Config now has "https://null:-1" as the value for the Registry URL.
If I reconfigure the URL it works fine until the next Cluster restart.
This has been happening since 1.9.1 (that I know of) and continues into 1.10
It's not a show stopper, but is quite annoying