Solution : https://service.sap.com/sap/support/notes/882865 (SAP Service marketplace login required)
Key words : 
short dump bdc_baddata reason, newly-defined server group, short dump bcd_baddata, cif compare/reconcile, terms delta report, relevant target server, 0 support package 4 implement, 0 support package 16 scm 5, 1 support package 11 scm 7, parallel processing profile
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| 552464 | What is Big Endian / Little Endian? What Endian do I have? |