Solution : https://service.sap.com/sap/support/notes/738908 (SAP Service marketplace login required)
Key words :
symptom mdx query dumps, master data read class, 0b import support package 22, prerequisites mdx engine, storing display attributes, subsequent call free_txt_n, import support package 16, 50 import support package 04, empty text table, 0b support package 22
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