What we have here is some of the early in-service bugs coming to light -as already said, with every piece of new, complex machinery, whether it's a new aircraft or from my industry, a new piece of IT hardware/software, there will always be bugs.
The only way for something like this to become mature, stable and reliable is to try it, test it and see what problems arise during normal operation. It did take a long time for the 747 to become as reliable as it is today, and it was all a matter of time. It's a matter of time with the A380.