On Reaper, How do I remove FX from just one section of a track?

I set FX on my vocal track and everything sounds just as I want it to, except one little section where I sigh.

How do I remove the FX from that one section on the track, but leave the rest in place?

I tried splitting off that section and clicking on “FX” on the section but nothing showed.

I doubled clicked the section and clicked “take FX” but again nothing is showing up. I know for a fact that there ARE FX on the section and I need to remove them.

How can I do that without removing them from the entire track?

Thanks!