Using ELG for Big Object queries

[pascalinger]

I have tried using ELG for querying Big Object data. I have come as far as creating the custom object definition using the SDG object. The Field Finder was able to find the fields, so the object is correctly setup.

However, loading the component on the page yields a callout error:

5 18:20:56:157 Error invoking c.GetSDGInitialLoad: A callout was unsuccessful because of pending uncommitted work related to a process, flow, or Apex operation. Commit or roll back the work, and then try again.

4 18:20:55:976 c.GetNamespace response: "sortablegrid__"

3 18:20:55:843 c.GetNamespace: {}

2 18:20:55:842 c.GetSDGInitialLoad: {"ParentRecordID":"0017Q00000DZV5bQAH","SDGTag":"CustomObject:account_positions","DefaultPageSize":"10"}

1 18:20:55:842 Mode: Waiting

I have setup a big object "Position__b" with a custom field looking up to the account "AccountId__c". That's the two values used for the configuration. I am trying to display all "Position__b" records whose "AccountId__c" value matches the currently viewed Account record.