Not your fault, Glen. The blame is squarely on RB staff for this, they obviously changed something related to it and didn’t actually test it still worked.
Anyway, not the end of the world. I still have the original details of my rating saved so I can write it again, just means all my milestone beers are off-by-one now. Unless joet can edit the date back to what it was, but whatever. Probably would have happened at some point due to merges and things.