A GraphQL mutation failure is preventing users from saving changes on the application submission metadata assets page in the Developer Dashboard. Specifically, the OCDevManageApplicationSubmissionMetadataAssetsMutation operation is failing with error code 1675030, indicating an "Error performing query". The error originates from Relay's GraphQL request handling layer, particularly in RelayError.js and RelayGraphQLRequestUtils.js, when attempting to persist asset metadata changes during the app submission workflow.