You receive a 1099R if you took money out of a retirement account like an IRA, a 401k, 403b, etc. or if you received money from a pension plan.
....and if you received one and entered it on last year's tax return, then an empty 1099-R form may have transferred into this year's set of forms.
IF you didn't get a 1099-R this year, then you need to go to the Retirment income section, go in and delete that 1099-R. But if you DID take out, or receive $$ from any retirement account, IRA, pension, etc....they have until 31 Jan to send it out (plus mail delays).
I'm still waiting for one mailed 1099-R that cannot be obtained online as a PDF download.
if you didn't get that document skip that section.
CAUTION: not all 1099-Rs have been mailed out yet.