Submitted by Atarpara, also found by gz627 and zapaz
As Per EIP-1271 standard ERC1271_MAGIC_VAULE should be 0x1626ba7e instead of 0x20c13b0b and function name should be isValidSignature(bytes32,bytes) instead of  isValidSignature(bytes,bytes). Due to this, signature verifier contract go fallback function and return unexpected value and never return ERC1271_MAGIC_VALUE and always revert execTransaction function.
contracts/smart-contract-wallet/interfaces/ISignatureValidator.sol#L6
contracts/smart-contract-wallet/interfaces/ISignatureValidator.sol#L19
contracts/smart-contract-wallet/SmartAccount.sol#L342
Follow EIP-1271 standard.
livingrockrises (Biconomy) confirmed
gzeon (judge) commented:
