sendAndConfirmTransaction bug? - solana-web3js

Question

In my application I use the signatures returned from web3.sendAndConfirmTransaction to do some offline/async reporting relating to the fees incurred by my transactions.
i.e. i use the signature to retrieve the transaction and then use the transaction?.meta?.fee field.
I have noticed though, when my transaction contains 2 instructions (in my example below) that the signature returned only contains the fee relating to 1 of the instructions. When I check the transaction history of my phantom wallet I can clearly see 2 separate fees - one for each instruction
async createTokenMetadataForToken(
business,
token_type
) {
const mint_authority = web3.Keypair.fromSeed(
derivePath(
`m/44'/501'/0'/0'`,
Bip39.mnemonicToSeedSync(
JSON.parse(business.keys).MINTER_SEED
).toString("hex")
).key
);
const metadata = await Metadata.getPDA(token_type.token_address);
const host = (config.nodeEnv == 'prod') ? 'https://<url>' : 'https://<url>'
const createMetadataTx = new CreateMetadataV2(
{ feePayer: mint_authority.publicKey },
{
metadata,
metadataData: new DataV2({
uri: `${host}/token_type/${token_type.token_type_id}/metadata`,
name: token_type.name,
symbol: token_type.symbol,
sellerFeeBasisPoints: 100,
creators: null,
collection: null,
uses: null,
tokenStandard: TokenStandard.FungibleAsset,
}),
updateAuthority: mint_authority.publicKey,
mint: new web3.PublicKey(token_type.token_address),
mintAuthority: mint_authority.publicKey,
}
);
const connection = getConnection(token_type.cluster);
const transaction = new web3.Transaction();
console.log("creating metadata")
transaction.add(createMetadataTx)
if(token_type?.equity_total_supply > 0){
console.log("also creating equity in same trx..")
//look up token
const token = new Token(
connection,
new web3.PublicKey(token_type.token_address),
TOKEN_PROGRAM_ID,
mint_authority
);
const recipientTokenAddress = await token.getOrCreateAssociatedAccountInfo(
new web3.PublicKey(mint_authority.publicKey)
);
transaction.add(
Token.createMintToInstruction(
TOKEN_PROGRAM_ID,
new web3.PublicKey(token_type.token_address),
recipientTokenAddress.address,
mint_authority.publicKey,
[mint_authority],
token_type?.equity_total_supply
)
)
}
const sig = await web3.sendAndConfirmTransaction(connection, transaction, [mint_authority], {
skipPreflight: false
})
return sig; //This signature only contains fee of one of the parts of the transaction
}