Problem:
I have created a BigQuery sink within GCP Logging, but no data gets exported into the BigQuery table.

I can see the created sink within the "Logs Router" tab within GCP Logging.
In addition I can see the corresponding dataset and table within BigQuery.
I have also checked if the corresponding Service Account has sufficient permissions. It has "BigQuery Data Editor" permissions.

I have already tried to delete the sink and create a new one. This did not help.
In addition I have compared my sink settings with other working sinks from other GCP projects, but it is the same setup.

Last but not least I had a look into GCP Monitoring.
There I can see the event "LoggingSinkConfigErrorV2".
But I do not know the meaning of this event and also my Google search was not successful.

[![Event error](https://i.stack.imgur.com/kaFzz.png)](https://i.stack.imgur.com/kaFzz.png)

EDIT 01.09.2020:

[![GCP Logging](https://i.stack.imgur.com/8y92I.png)](https://i.stack.imgur.com/8y92I.png)

EDIT 01.09.2020:

[![GCP Advanced Logging](https://i.stack.imgur.com/0BjpN.png)](https://i.stack.imgur.com/0BjpN.png)