Binance has announced that 29.9 has a time limit

#eos eos fixed-term wealth management 120 days, how did the annual yield just change from 29.9% to 7.5%? The scary thing is that the many days locked at 29.9% have all changed, is it a bug or what? Which family's fixed-term wealth management can still change after being locked? Is EOS going to collapse?