"Looker Studio cannot connect to your data set" (Google Sheets)

Looker was working for us on 4/17, but as of Friday 4/18 all of our organization’s dashboards have the errors of “Looker Studio cannot connect to your data set”. Most are connected to a Google Sheet source that have not been changed. Solutions I’ve tried that haven’t worked:

  • Refreshing the data
  • Reconnecting to the same data source
  • Trying to rebuild a new report connecting to that Google sheet
  • Trying to make a copy of the Google sheet and connecting to that source instead

I have the same problem since last week.
Does anyone know how to fix it?

Currently facing same issue for Blended Data source.
Error message :
Looker Studio cannot connect to your data set.
The underlying data has changed. Please notify the data source owner to refresh.

Anybody manage to solve? Have tried reconnecting the data sources , but doesn’t help.

Same here