I am joining 4 datasets together. I have a base/core dataset, which then has 3 distinct joins to 3 other datasets. Each dataset is fine individually, and I can view the datasets in preview mode. However, I am getting ’ INTERNAL_SERVICE_ERROR’ when trying to build/refresh the joined dataset.
If I remove any of the 3 joining datasets, it works OK.
My suspicion is that there is an unpublished timeout happening somewhere. Can anyone shed any light?