If you've removed a wallet involved in non-custodial ETH staking from imToken and later re-imported it, the staked ETH might not appear within your wallet. This is due to the staked ETH residing on the Ethereum consensus layer, where earlier versions of imToken (prior to 2.12.0) couldn't automatically generate a consensus layer public key after removing and re-importing a staking wallet.

To fix this issue, simply navigate to "My Profile" - "About Us" - "Version Update" within your wallet to update to the latest version of imToken. This will enable you to view the corresponding amount of staked ETH.