Indeed, it's a -1000 (there's no great mystery behind the disappearance of this MS) and a +200 (it's more a correction of an "anomaly" for this new MS).
I knew there are some changes because total merit sources number is the same but total sourced merit drops significantly.
It's a long time I did not check that page and even when all stats are the same, there are possibly something changes internally too like increase and decrease of sourced merits among current merit sources.
Thank you for your information Halab.