LewShakey
Golem
Two thoughts... Have you killed Plantera in that particular world? And maybe try having just one power cell in your inventory (put the rest in your piggy bank or safe for the moment).
I have been able to fight Golem in my mobile world since the last update, so I know he is possible to summon.
Alright, thanks for the advice. My current world has some really messed up world gen and the temple door led to nothing. So I can't get into the temple. I'll kill plantera on another world and get into the temple again, I'll get back to you after that. Trying only one cell leaves the same result as it would with me trying 5
Thanks for the suggestion