Sorry to hear you hit some snags along the way.
Hard to say for sure, but it seems that only a very small handful of customers are using the Node-RED dashboard nodes. Most people test it and then come back to groov View for one reason or another.
The URL issue is reviewed here;
It is important to keep in mind that both Node-RED and Ignition are not Opto software. They are downloaded from the web and installed (embedded) into EPIC.
We contribute as much as we can, but like all software, bugs sneak in. With each release of EPIC firmware we strive to make our software better and upgrade the versions of third party software.