pitch correction not accurate

hello, I’ve been trying to create samples with Audacity by pitching them to a correct C, 260.947, but it doesn’t go to those exact numbers. It always goes to 261.932 or something instead. It doesn’t seem to be able to pitch to any note I tell it to. This problem occurred a few days ago, pls help

using windows 10 with audacity 2.3.2

The detected pitch is an approximation based on SFFT analysis. It’s close enough for most purposes, but not exact.
The “Percentage Change” is an exact ratio.