I've recently upgraded in my Donation Tier to be high enough for at least 3 donator boss kills, but I'm still only able to kill two of them as my limit. Is there something that I need to do in order to refresh my status?
I believe you have to wait 24 hours after upgrading to the next tier of donator rank for your kills to update if you've already killed them today. Check back tomorrow and pm me if you're still having issues, Sparc blac#8735 on discord