Splurgle Achievement not progressing or unlocking

Im also having this issue. I have collected all priorite and purchased everything from the shop, yet it is not unlocking.

I have tried the tips given as best I can, ie save in a different save point other than Pyloons, but its not unlocking.

I have nothing else left to purchase from any vendor, except Caij, (I also have the bounties glitch too).

😞