Has anything changed in Power BI in the last week? I have a few Datasets / Reports which are no longer refreshing in Service due to the error "Not a legal OleAut date". I've narrowed it down to some bad dates in one column (i.e. 11/09/0212). However, these reports were running fine last week, and the source data has not changed (it has always been bad). They also work in Desktop, it is just the schedule refresh in Service that is a problem.
I want to understand what has changed or why they are failing now, rather than just write a formula to replace the bad values.
Thanks