The time required to process a classification data file varies on the size of the file and the current number of files already being processed by Adobe’s servers. Processing of data files usually takes no longer than 72 hours.
When I pulled the report, I did have the current date in the report. However, I was seeing changes on data from the 28th of April, when I pulled the data on May 1.
We are seeing data that was qualified under "Unspecified" are changing when we pull data from 3 days ago. From your comment, shouldn't this only be 24 hours instead of 3 days? I am seeing data from the 4th of May change when I pull this data today (7th of May) every time I refresh the data
Form the table, I can understand that the dimensions you have selected were Classifications.
Verify whether you have updated any Classification Rules or whether you have added the current date(Today) to the report. Usually classification takes 24 hours to classify so, at some case they qualify under Unspecified and later under proper classification value.