Hello,
We were able to fix the issue.
We upgraded powerbi-client npm package from 2.8.0 to 2.14.1 and we are sending in the bookmark state alone when calling ExportToFileInGroupAsync.
It is not clear why before 2020-10-07 exporting worked as intended when we sent in both BookmarkName and BookmarkState and now it only works with BookmarkState alone.
It is not clear why the bookmark state alone generated by version 2.8.0 of powerbi-client does not work while the bookmark state generated by 2.14.1 works.
An explanation/documentation update would be appreciated.
It would make debugging issues like these a lot easier if the return value from GetExportToFileStatusInGroupWithHttpMessagesAsync would contain details about the cause of the failure.
Regards,
Rachel Gomez