Xuange Def to debris

Wasn't sure where to post this, but I saw Xuange section was created on the forum - I checked the settings on the uni and they looked reasonable.
I made an account and have been playing. Now after a few days and my first crash I realised the uni had defence to debris - although the forum section doesn't mention this at all.
It does however mention it in the Game section on the forum (which I hadn't checked)
I cant revert the last 3 days, but I hope this post can change it so the forum section also can include Defence to debris (and how many % of it is)