Hi @Space92 ,
You said that you had replaced the .rdl file.
Do you mean that you delete the old report on the server and upload/deploy the newest report? If yes, report history is also deleted when you delete a report.
You may try to save the latest report via the report builder or Visual Studio directly and then the history snapshot will be there.
If I misunderstand your meaning, could you please help check if you save the latest report directly will the history snapshot disappears.
For reference:https://learn.microsoft.com/en-us/sql/reporting-services/report-server/create-modify-and-delete-snapshots-in-report-history?view=sql-server-ver15#modifying-properties-and-deleting-report-history
Regards,
Zoe
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