Yeah, something is definitely wrong and I'm pretty sure it's on your end WGT.
Earlier this morning Salamii granted me access to his account and I attempted (from my PC) to equip his PING driver from the club options (not during a round).
It would allow me to switch out all of his optional clubs. It allowed me to place his PING driver into the slot and I was able to click SAVE.
However, when I saved it, and re-opened the equip club window, the burner was once again in the bag.
This shouldn't be happening on two PC's that are 3000 miles apart. The fact that it happened on my pc as well shows that it's not his cache or cookies or anything to that nature. I'm 99% positive it needs a WGT-fix.