Wynntills problems

Whenever I cast a spell as an assassin, the screen goes blue almost entirely. I've found people that have said that to fix it, I need to turn off spell cast overlay in the Wynntills menu, but I can't open it. Whenever I click esc and go to the Wynntills menu, the menu I'd expect to see flashes for a second, but then changes to the character info menu. If I try to open it by right-clicking the content book, the same thing happens, only with the content book screen. Also, the music doesn't work. I've opened Wynncraft as regular 1.20.2 (what I use Wynntills on) and neither of the issues are present.

 

The 1.20.2 versions of Wynntils no longer work as they never received support for the 2.1 update. 1.21/1.21.1 is the current supported version with 2.4.3 being the most recent release.

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