Curve has released a proposal to disable the Chainlink price oracle restriction for crvUSD. The proposal states that currently all price oracles in crvUSD have a "security limit" of Chainlink +/- 1.5%. This means that if the Chainlink price deviates too much (1.5%) from the internal oracle price (EMA), it will use Chainlink as the source. It seems that when the market fluctuates greatly, the Chainlink price can cause unnecessary losses. If the volatility is high enough, price oracles limited by Chainlink may still deviate. Therefore, I suggest disabling the Chainlink restriction in all market price oracle contracts, except for the old frxeth market (which will soon be replaced by a new market). The specific method is to call all price oracle contracts from the controller owner (Ownership DAO) through set_use_chainlink(False).