Not sure either as my carbon bike is fully painted - with no carbon weave showing.
I am a fan of Cube bikes & just applied to work for C2W scheme voucher for a Cube Peloton Race (aluminium) but this doesn't sound quite right, maybe not so much the visible joins but the cloudy lacquer.
Best thing with any new purchase when unhappy is to take it to your dealer & discuss it first rather than leave it & always wonder or leave it too long & have no recourse.
Be interested to know the outcome of this one for sure.
Best of luck.