JohnDoe, let's take this step by step so we make certain we are both on the same page:

After you load La Femme and INJect the morphs you wish to use

Load and Conform the 1 Pc Suit

Then, go to Runtime>Libraries>Pose>RPublishing>LaFemme>Clothing>1PC Bikini

and INJ the morphs you used on La Femme into the swimsuit

At that point, the morphs in the suit will become superconforming and will automatically follow the morphs in the figure when dialed.

It appears you have neglected to INJ the morphs into the swimsuit.