[BUG] EVM batch precompile calls seem to be misconfigured or broken

[AtelyPham]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Currently on Tangle EVM (both testnet and mainnet), when I click the Nominate button on the Nomination table, enter the required inputs, and confirm the transaction in my EVM wallet, the transaction appears successful with a notification confirming the nomination. However, upon checking the results, there are no bonded funds and no nomination recorded.

Expected Behavior

Once the nomination transaction is confirmed on the EVM, users must ensure they are a nominator with the bonded function and that their nomination is recorded correctly. If the transaction fails, users will see a notification with an error message.

Steps To Reproduce

1. Open the Tangle dApp locally or on the development site.
2. Connect your EVM wallet (e.g., MetaMask).
3. Click the Nominate tab.
4. Scroll to the Nominations table and click the Nominate button. If the button is not visible, your current account is already a nominator; switch to another account with TNT available for nomination.
5. Enter the required information.
6. Click Confirm in the modal and your EVM wallet.
7. Wait for the success notification.
8. If nominations do not appear in the table after refreshing, check the PolkadotJS Portal by querying staking.bonded, staking.nominator, and staking.ledger using your converted Substrate address (convert your EVM address here).

Screenshot

Nominate transaction execution from an EVM wallet via this button failed.

Transaction on the EVM mainnet is hanging; encountered this error in the console.

Anything else?

No response

[yurixander]

Related: tangle-network/tangle#925

[yurixander]

Closing as duplicate of #2837