I was only commenting that the nature of the money paid out of an IRA is ordinary income rather than capital gains or dividends income and the fact that the gain in value within the IRA resulted from capital gains and dividends from investment within the IRA should be irrelevant.
I'm not particularly familiar with FDAP income or preparing a U.S. Nonresident Alien Income Tax Return, so I'm not able to say whether this income meets the definition of FDAP income. It might help to use Sprintax to see how Sprintax treats this on your non-resident alien tax return.
