1, first of all, this must be a good sign. Eight dragons in a circle, leaderless. As the old saying goes: see a leaderless group, Ji. So, this must be a good sign.
It is said that the dragon gave birth to nine children, and you only saw eight of them, and these eight dragons took you and your wife as acquaintances. Superstitively speaking, one of you and your husband may be the reincarnation of the son of the dragon.
According to what you said, the dragon was even more happy when he saw two wooden dragons. Maybe you and your wife were a pair of dragons in a previous life.
I can only answer so much. As for why the switch is broken, I don't know how to guess. Don't believe what I say too much, it's just a guess.