Power BI Privacy Settings

We have been utilizing POWER BI for more than a year, and an unexpected issue arose last Saturday when our data failed to refresh. Upon investigation, we identified that the root cause of this issue was related to privacy settings. Specifically, we switched from the setting "Combine data according to each file's Privacy Settings Levels" to "Always ignore Privacy settings" as a corrective measure.

However, it is imperative that we gain a deeper understanding of why this error occurred suddenly after a year of smooth operation. Furthermore, we need to assess the potential for a recurrence of this issue in the future. Additionally, we should proactively consider any potential complications that may arise as a result of the privacy setting change we implemented. This analysis will help us ensure the stability and reliability of our POWER BI system moving forward.