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The operation has been cancelled error when applying a filter.
This error usually comes when you are searching and filtering customers/subscriptions/invoices etc. It could show like this (below image) or in the middle of the screen with no results.
This error would occur due to a slow query or query getting timeout due to a huge number of records.
Since sorting the records and applying the index on all the records would be slow and the query would get a timeout.
As a workaround, you can filter the records further by applying the date range as this would reduce the number of records, or any other filters as per your requirement.