[Bug]: Cannot estimate gas fee on simple contract transaction

[buglov]

Describe the bug

I have very simple contract with two functions whitelisteToken and removeWhitelistedToken:

mapping(address => bool) public whitelistedTokens;

function whitelistToken(address token) external {
    whitelistedTokens[token] = true;
}
function removeWhitelistedToken(address token) external {
    whitelistedTokens[token] = false;
}

When I try to execute a transaction, Metamask shows warning that cannot estimate the gas.

Expected behavior

Since the transaction is successful, I expect this warning to not be there and to estimate gas correctly

Screenshots/Recordings

Steps to reproduce

1. Go to BSC Scan
2. Connect your metamask
3. Try to whitelistToken (for example 0x0000000000000000000000000000000000000000)

Error messages or log output

No response

Detection stage

During release testing

Version

12.6.0

Build type

None

Browser

Chrome

Operating system

MacOS

Hardware wallet

No response

Additional context

No response

Severity

No response

[bschorchit]

Hey @buglov, thank you for your report! This will be fixed on our v12.6.1 release that should be rolling out soon

[bschorchit]

@buglov we have rolled out v12.6.1. Can you confirm if that your issue is fixed on this version?

[buglov]

@bschorchit tested this both on testnet and mainnet and its looks fixed! Thanks!

[bschorchit]

Thank you!