Graphs don't show up

[GalaxyGorilla]

Hi, I was following a guide to setup promdash with node_exporter:

https://www.digitalocean.com/community/tutorials/how-to-use-prometheus-to-monitor-your-ubuntu-14-04-server

This worked out fine (even on Fedora 22) and I got Promdash running. Now I'm trying to create a graph. The problem here is that the metrics stored in Prometheus are recognized (visible due to the 'auto-completions' popping up) but the graph is just not showing up. I also noticed that the "Link to Graph in Prometheus" option is also not working because "No datapoints found.". When I simply render the graph using the default frontend of Prometheus there are no problems.

Another less important question: where can I reconfigure the port for promdash?

Hope someone can help me :)

EDIT: yes, I used the 'refresh' buttons

[stuartnelson3]

can you open your console and see if there is any error output?

Another less important question: where can I reconfigure the port for promdash?

from the docs:

bin/env bin/bundle exec bin/thin -p $PORT start

[GalaxyGorilla]

The console output shows no errors.

Something else: As mentioned the "Link to Graph in Prometheus" option in the default Prometheus frontend is not working but when I just add a new graph and put in the same expression everything is fine.

Thanks for the hint with the port!