Charts are not showing in explore mode until you refresh the page

[warenlg]

I had this issue when doing a demo on my local instance.
Let's say you are in SQL Lab, you're query is running fine and you have your output table. After clicking on Explore the default visualization type is a Table and you can see such a table on the right. Then, if I'm changing the visualization type to a bar or a pie chart for example, it shows me Control labeled "Metrics" cannot be empty. Ok fine let's set the proper metrics and series in case of a bar chart.
However, when your query configuration is fine and you click on RUN QUERY, no chart is showing, no message error, nothing. When I inspect this element of the page, the console shows me:

explore.4a1f0ba….entry.js:2 Item with key "SUPERSET_DEFAULT" already exists. You are assigning a new value.

:8088/superset/log/?…events&slice_id=0:1 Failed to load resource: the server responded with a status of 400 (BAD REQUEST)
explore.4a1f0ba….entry.js:2 

Uncaught TypeError: e.map is not a function
    at explore.4a1f0ba….entry.js:2
    at r.utils.state.<anonymous> (explore.4a1f0ba….entry.js:2)
    at r.utils.state.update (explore.4a1f0ba….entry.js:2)
    at SVGSVGElement.<anonymous> (explore.4a1f0ba….entry.js:2)
    at explore.4a1f0ba….entry.js:2
    at he (explore.4a1f0ba….entry.js:2)
    at Array.ws.each (explore.4a1f0ba….entry.js:2)
    at Array.I (explore.4a1f0ba….entry.js:2)
    at Array.J.call (explore.4a1f0ba….entry.js:2)
    at Object.generate (explore.4a1f0ba….entry.js:2)

:8088/superset/log/?…events&slice_id=0:1 Failed to load resource: the server responded with a status of 400 (BAD REQUEST)

After the demo, I figured out that I need to refresh the page for the chart to finally show. I don't remember this behavior before.

sourced version v0.17.0
srcd/sourced-ui:v0.7.0

[se7entyse7en]

@warenlg do you perhaps remember the version or when you last used the dashboard? I also don't remember this behavior of requiring to refresh the page at least during demos, do you @smacker ?
Most probably this has been introduced with v0.6.0 where we updated superset.

[smacker]

can't reproduce on dogfood instance (it runs v0.7.0 afaik)

[se7entyse7en]

can't reproduce on dogfood instance (it runs v0.7.0 afaik)

\cc @alexpdp7

[alexpdp7]

Yes, it's running the srcd/sourced-ui:v0.7.0 image...

[smacker]

@warenlg do you mind to try on dogfood instance and log your steps if you are able to reproduce it? I followed your description and everything worked for me correctly.