AW Tier Issues

Dukenpuke

For the last war of last season and the first two wars of this season, our alliance was in tier 6 at the start of each war. Now when we look at the history, it shows that we were awarded points for tier 7 instead of tier 6 for each of them, and given the 3.2x instead of 3.4x multipliers. We're still showing as T6 in the current war matchmaking screen after two consecutive victories to start the season.

What's going on? Are war tiers adjusted retroactively? I'm not sure if this is intended or a bug.