Default Sets Not Hiding in Swap Sets

I saw similar posts on this issue, but I kinda figured it out randomly for my case and thought other newbies might run into it and search the forum...

I set up separate swap sets for squint behaviors (slow and fast). Each had "Default Eyelids" in the default on position. Because the sets were seaprate, one default was always on, so the "Default Eyelids" would never disappear. The solution was to consolidate the swap sets into one, so there was only one "Default Eyelids."