I noticed the same thing this past week. I would select say the 4th choice down the list, but if the meal selection was opened again the checkmark would appear by the 1st option. After repeating the process a few times I was able to verify the correct meal was in actuality saved by going to pnr.sh and referencing the SSR meal code with what was the meal code for my intended choice. Flight Information Use this link to see the meal codes for each dish and to cross check your PNR. Sadly my trip got cancelled due to a massive delay so never got the chance to receive it onboard.