You may look at the config file (XComcontent.ini). The lines in the final set are using :
ArchetypeName="ZZZ_RR_BladedancerMerc_Base_Data.Archetypes.ARC_RR_BladedancerMerc_Std_Thighs_Belt_Weapon_WCloth_Def_F
They should be using
ArchetypeName="ZZZ_RR_BladedancerMerc_Base_Data.Archetypes.ARC_RR_BladedancerMerc_Std_Thighs_Belt_Bare_WCloth_Def_F
There are seven replacements to be made. Keep the full lines of course and replace only the part related to the archetype. The archetype with the weapons has in fact been duplicated, that is why the weapons always appear, when there are two possibilities (one with the weapons visible and one without the weapons).
Rgds