[BUG] PBI connector: Connectivity issue

[Yury-Fridlyand]

I received an email saying that an OpenSearch user experiencing a PBI connectivity issue. Quoting:

User can refresh the report in Power BI Desktop but failing in Power BI service with the below error. Tried to refresh the Dataset in Power BI web which is failing.

We cannot discover all data sources in this dataset right now because the dataset users a custom connector. Make sure the data gateway associated with the dataset is online and has the custom connector loaded, then click again on Discover Data Sources.

I asked for details and will update this post when/if I have more info.

[gbarmashiahflir]

Same here.
Getting the following error when trying to refresh from within the Power BI service:
Data source errorUnable to refresh the model (id=2668284) because it references an unsupported data source.