Prime Evil Powers BUG

I am experiencing the Season 15 quest progression bug in Diablo IV.

My main character used a Splinter of Terror before completing the seasonal questline. The first quest is now stuck, and all Prime Evil Powers appear locked.

I created a new seasonal character in the same game-mode partition and completed the entire seasonal questline. I collected the Splinters and successfully selected a Prime Evil Power on that character.

However, my main character still cannot access the Prime Evil Powers, even after completing the workaround described in patch 3.2.3.

Please investigate whether the seasonal quest progression or Prime Evil Power unlock can be reset for my main character.

Platform: [PC]
Game mode: [Normal]

after creating the second character and competing the seasonal quest, you are saying that you cannot use a different splinter to change your prime evil power? once you pick the seasonal power the first time, the only way to change it is to find the different splinter and use it. you won’t go back to deckard’s table to change it, that just becomes the seasonal reputation board.