Solution : https://service.sap.com/sap/support/notes/1388768 (SAP Service marketplace login required)
Key words :
/usr/sap/<sid>/trx<instance>/exe/python_support/calcengine/usr/sap/<sid>/sys/exe/nuc/linuxx86_64/python_support/calcengine, operation calcengine, sap service marketplace, sap businessobjects explorer, sap business explorer, query snapshot index, gob2 beta shipment 720, formula = formula[formula, beta shipment reason, bwa special release
Related Notes :
1380736 | Central Note: SAP BO Explorer, accelerated version |