Appended legs to make a dress but mesh 2 keeps disappearing

Hi! I'm making a dress out of a top and appended some leggings so i can make the dress fit with the legs in cas. I added in mesh 2 from the leggings but mesh 3 (on the wrist) keeps disappearing in the Studio! Mesh 3 has a geom of 008 and mesh 2.001 (appended) has a geom of 011. Any ideas on what i can do? I'm fairly new to this.