Originally Posted by 59Impala

You can‘t grab seats for free outside the check-in window which is T-24 (unless you through check from another flight, then typically T-36, which could be the indicator why the throne seat was taken). Ever since LX moved from the PARS System in 2016 and DCS in 2017 (I worked for the IT provider) to Amadeus/Altea you cannot book seats within these 48 hours as I have noticed. I presume they do not have a common seat map to handle the situation as the former system did (unbelievable actually). Seating and re-seating is generally still a big issue at Amadeus, they cannot handle this well enough.