Missing season point

So I was checking out my rank and progression today, and it seems as though I’m missing a season point.

At 4.5 million points, I’m currently ranked as a 2nd tour Major General (tier 57, if you count the starting rank of 1st tour Rookie as tier 0), which means I should have unlocked 57 tiers of rewards. However, I only have 56 tiers of rewards unlocked and 0 season points to unlock more.

Is anyone else missing a season point, or is there some other reason why my reward tier doesn’t match up with my rank tier?

On another note, I’ve obtained 2 steaktacular medals in matchmaking while playing some yappening game variants, but they haven’t been counted towards the Domination achievement (ie, I’m still at the same completion % now as I was before the yappening event started, even though I’ve earned 2 more during the event). Any ideas why?