Balancer urged some pool LPs to withdraw liquidity as soon as possible after discovering an issue
ChainCatcher news, according to a tweet from Balancer, "The protocol fees for some Balancer pools have been set to 0 to avoid an issue that is about to be publicly disclosed, which has been mitigated. This action was completed by an emergency multi-signature. These pools continue to operate normally, so liquidity providers for these pools do not need to take any action; they will continue to earn swap fees, but the protocol will not deduct any fees."
Subsequently, Balancer urged some pool LPs to withdraw liquidity as the emergency DAO could not mitigate the related issue. The pools that need liquidity withdrawal include DOLA / bb-a-USD on the Ethereum mainnet (current locked amount $3.6 million), bb-am-USD/miMATIC on Polygon (locked amount $9,000), Beethoven X on Optimism (powered by Balancer) with It's MAI life (locked amount $1.1 million) and Smells Like Spartan Spirit (locked amount $90,000), and Tenacious Dollar on Beethoven X on Fantom (locked amount $1.6 million). (source link)