You want the simple answer ules? Emirates and Singapore are having the same or similar problems.
It's a new aeroplane, and I very much doubt there's been a new aeroplane delivered into airline service since 1930 or so, be it a Boeing or any other brand that doesn't have problems, from major to minor, in the first year or two of service. The 777, quite possibly the modern day DC3 in terms of utility and commercial success, was known as "the cripple seven" when it first came into service.