The behaviour has changed in the latest OO.o 3.2.1, now it displays "Move background page assignment. The loading of password-encrypted Microsoft powerpoint presentations is not supported." thus having the same behaviour as reported in bug #332648 - Could these be duplicates?
Also note that I have verified the upstream bug too, and OO.o successfully opened the two attachments attached there, so this might not be the same bug as the one set here as the upstream report.
The behaviour has changed in the latest OO.o 3.2.1, now it displays "Move background page assignment. The loading of password-encrypted Microsoft powerpoint presentations is not supported." thus having the same behaviour as reported in bug #332648 - Could these be duplicates?
Also note that I have verified the upstream bug too, and OO.o successfully opened the two attachments attached there, so this might not be the same bug as the one set here as the upstream report.