New Refresh Error with no specific details

We’ve been encountering a new dataset refresh error. The error is DATA_TOLERANCE_EXCEPTION, with no other details. How do I track down the cause? everything was working until very recently

Hi @matthew.fahy - Welcome to AWS QuickSight community and thanks for posting the question. Is the symptom for one specific data set or all data sets in the account? If it is specific to a single data set, is there any change happened to the data set or the source of the data set? Please give more details so that we can guide you.

Since there is not much details available, i will advise to raise a ticket to AWS customer support team so that they can analyze the issue by screen share and guide you the solution. To raise a ticket, please follow the below link -

Regards - Sanjeeb