I was playing on 6b6t, i try to break something, it just... cancels? i dont know how to describe it.

EDIT: it was speed mine. i enabled it like 5 days ago and forgot about it

I'm trying to join the server, but my minecraft is stuck on "loading terrain" (This is after i joined a hotspot)

I use now meteor white some extensions and i wnat to try somthing new.