Originally Posted by lawkd
^^^right, although there are many people who turn them deliberately to get a different effect.
Then you can install the chainring in the intended orientation, instead of having to turn it.
If I interpret the problem, the pin isn't an obstruction. The problem is the new crank has the crank arm as the "5th-arm" of the spider like Campy does with some of their cranks. One chainring retaining bolt threads into the crank arm.
The old crank had all 5 arms oriented around the crank arm so no chainring retaining bolt actually went into the crank arm.