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After September 2017 update (2.50.4859.502) we've faced an issue similar to one some users had reported in February: when we try to get data from Analisys Services, where our MS Dynamics OLAP Cube is located, we end up with the following error: 'Unexpected error: Object reference not set to an instance of an object'. Rolling back to previous PBI Desktop version resolves the issue.
I was hoping this bug would be fixed in October update, but that didn't happen... ![]()
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