Solution : https://service.sap.com/sap/support/notes/680183 (SAP Service marketplace login required)
Key words :
symptom hierarchy nodes disappear, older support package versions, 0b import support package 18, 1c import support package 12, terms web reporting, 0b support package 18, 1 content support package 12, current support package, bw support packages, support package
Related Notes :
| 647747 | SAPBWNews BW 3.0B Support Package 18 |
| 601038 | SAPBWNews BW 3.1 Content Support Package 12 |