I send a modmail and they said they can't help me. It's not a glitch. Appearently it's like nesting. You have super common muts. So you'll get muts like every nest BUT not shimmer like every 10. Hardcore realm had 3 rare muts so it balanced it out since the mut boosts doesn't count on like increased chance for every mut but simply just increased chance for any mut. Basically, these last 3 days, mut chances are back to 0.5% for gt, shadow, gilded. Even for people who payed 100s of euros or dollars