I've experienced this a few times and wonder if its a problem. We have the 125 with DSG and the DSG is usually a breeze. However, I've noticed a couple of times that if I pull away from the kerb up a steepish hill, the DSG seems to get stuck in first and won't shift to second unless I pull the level across to the "tiptronic" gate.
Now I'm not flooring it and I'm in D rather than S. Should I worry? Is anyone else experiencing this?