Please be aware that LH had a major overhaul of their M&M IT-systems and since February 11th almost no external connectivity to other *A frequent traveler programs seems to work at this time, either way.
The overhaul basically shut down the M&M-system for a week and it's up again since February 17th, yet from my experience with crediting LH-flights to other programs (OZ, A3) these flights did not show up there so far. In return, SQ-flights with accruing fare-classe did not make their way into a friend's M&M account as well, so it seems that the parter-connectivity has not been restored so far after their IT-overhaul.
Greetings - Dirk