Something I noticed that may be more on the LH side, but regardless...

I used the self check-in kiosk in HAM for an LH flight to CDG. The reservation did not include my MP number when originally made, so when I clicked to add it, the screen that popped up only allowed for entry of numbers. I was all ready to use my new MP number but it would not allow me.

I put in my old MP number and a day later the flight posted to my account. I did not get any bonus EQM for having status on UA but I don't think I am supposed to anyway on LH.