Solution : https://service.sap.com/sap/support/notes/1286919 (SAP Service marketplace login required)
Key words :
contained st/a-pi service data, st/a-pi service data, st-pi download failed previously, affected earlywatch alert session separately, relevant ewa source program, earlywatch alert report, earlywatch alert sessions, 'database version' section, short-term workaround, relevant source program