Important: We are aware of an issue when using the 'Search for Updates by Chart Number from a specified date only' function listed below. The error has been occurring since the 18th March 2025 and is now resolved. However, as there could have been instances where NM data was not correctly returned, we strongly advise users to recheck for any chart updates that may have been issued between the 18th March 2025 and 8th April 2025 to ensure NMs have not been missed. No other search types on the page were affected.