Apply button is greyed out when adding a data source to the on-premise data gateway

[Anonymous]

I noticed when I published a report with an on-premise data source (SAP BW) along with cloud data sources (Sharepoint), the Apply button is greyed out in the gateway connection settings:

Again, this is only applicable to newly published datasets.

For the existing ones, there are no errors, and I can refresh successfully. Like this one, it has actually the same setup, just published in a different workspace some time ago:

I just experienced this yesterday. 

Any of you are experiencing it now?

Appreciate the responses!

EDITED--

Check out the comments for the workaround

Microsoft has also posted the issue on the Power BI Support page. Expect the fix to be on 24th of January

[markhay]

Any updates?