# Important events are missing Low/Info · Three Sigma · Omnichain RWA tokenisation · 27th January, 2024 Finding 3S-MetaZero-L01 of the MetaZero Omnichain NFTs security review. - Protocol: https://metazero.gg/ - Report: /reports/metazero-i - Source: https://cdn.sanity.io/files/qoqld077/production/1b1ab4ff365756fe1d86767f1e06744407570f5a.pdf --- ### Description State changing variables should emit events for data fetching purposes. The following variable changes are missing events: https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L55-L56 https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L78 https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L135 https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L163 https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L192 https://github.com/threesigmaxyz/metazero-issues-external/blob/master/src/ONFTV2-721C.sol#L196 ### Status Addressed in a7dab03. --- Related findings: - [Missing key events when requesting withdrawals that could be important for the allocator bot](https://0xsimao.com/findings/yieldoor-iii-requesting-withdrawals-allocator-bot): Yieldoor LoopedVault Update - [Missing admin change events](https://0xsimao.com/findings/keyring-ii-missing-admin-change-events): Keyring Credentials - [Missing some events](https://0xsimao.com/findings/metazero-ii-missing-events): MetaZero Staking