I see you did multiple withdraws which happend in the same transaction and due the bitcoin wallet only 1 will be sent.

How can you verify this:
Download the orginal bitcoin wallet. Use ./bitcoin-cli sendmany and try to include multiple the same addresses. This will result in an error.

Batched transactions means multiple payments within the same transaction. Why do we do this: Every transaction uses 158 bytes and a payment uses around 34 bytes.

Do you do 20 withdraws without batched transactions you will result in this: (158+34+34) * 20 = 4520 bytes
While if you do batched transactions you will result in 192 + (34 * 20) = 872 bytes

This will speed up the blockchain and also lower the costs of a transaction. Mostly every exchange or business with high bitcoin withdrawal volume should use this in order to make place for also other transactions.

More info: https://bitcointechtalk.com/saving-up-to-80-on-bitcoin-transaction-fees-by-batching-payments-4147ab7009fb

About your case:
the 0.339 BTC withdrawal will be sent in the next transaction if it isn't already sent. The other 2 will come after this one is also sent to prevent duplicate addresses.

Regards,
Leon