FlowCharting plugin Dashboard in Greyed out state.

For one of our dashboards, we are using FlowCharting plugin, and the dashboard is fully in greyed out state.
I have found that the data source is functioning correctly. However, data intermittently populates, and I am unsure of the root cause.

We are running Garafana in v10.0.11, and plugin version 0.9.0.

Please let me know if there are any solution for this.

