We don’t have enough information here. Could you show a picture of how the rig looks in the explorer? It’s especially important to know how the bundle is being applied (via CharacterMeshes or SpecialMeshes in each limb) as well as how the texturing is being done because there is definitely one on this rig. The texturing method may be overriding the clothing.
I am using special mesh, because I was using R6 Rake rig by xCorrectTheDev, but parts from arms, legs, torso and head ,and just rigged it all with Rig Edit Lite.