Guild Wars 2

I’ve a elementalist and I like working with 2 daggers and all 4 elements (depending on situation and mobs).
From yesterday, for some reason, when I’m water attuned, auto attack don’t work.
Fire, air and earth auto attack works fine, water goes disabled and don’t matter how many times i try to reactivate it; it doesn’t work.
All these before and after last update.
I’m doing something wrong or it’s bugged?

I was passing near False Lake (Lornar’s Pass) when started an event, gather dwarven artifact. I’ve serched and gathered some of those but i cannot find the gatherer where the map say it was.
Please, fix it.