unable to delete `out` from graph

[xobs]

I'm unable to delete the out signal from the graph, so it doesn't simulate.

The only way I've found to get it to simulate is to add a connection called out, which allows it to simulate. However, even in this case I cannot delete the out line from the chart.

Note: You don't support uploading json files here, so I have uploaded them as a gist instead: https://gist.github.com/xobs/f2ef9c71017ece773c57e363b57476a2

[xobs]

The (X) isn't working. I've tried on Firefox and Edge.

[urish]

Thanks for the detailed report. I was able to reproduce the issue.