But this isn't the first flight, it's the third (and the second of Dragon). Depends on whether we're talking about problems with the spacecraft or the launch vehicle/infrastructure.
My concern is if the delays carry on to the fourth, fifth flights, etc. If they don't, good for SpaceX. If they're still in that phase of needing to perfect and tinker with things by then, they have a problem.
It's the first flight to the ISS. I'd expect majority or even all of the problems to be related to that. Yes, it's the third flight of F9 and second of Dragon, but the previous missions did not have any objectives beyond proving the launcher and capsule.