@3dRaven thank you very much for taking your time and doing this. I have used both blueprint nod at this point, my mentor was using the second one (SET) not (f) Set Skeletal Mesh Asset for Actor_Weapon_Select although we used (f) WeaponSwap for BP_Coursera_Character which I have shared the video in the post above. Unfortunately, I am not getting the same result.
Context Sensitive is Always Turned On and I have checked this many times just in case. I am still confused to see how yours is working and not mine.