Prankster priority failed

Went to use encore on a kommo-o that had used clangorous soul with my prankster sableye but the move came after it should have allowing them to attack my team and get the win

I'm a bit of a noob and I can't remember exactly what happened so maybe there was a reason for that but it struck me as odd since i was fully expecting to go first in that instance

Not saying it was a bug but could anyone help me understand what might've happened there?