Strange transactions after importing old private key into Bitcoin ABC

[Oldie]

Hello,
     Strange thing happened here.  I have only used the Bitcoin Core wallet, and just followed the instructions in the sticky to create a new wallet, transfer everything, and then export/import the old key to the new Bitcoin ABC Wallet.  Took a while but it eventually synched up.  I do show all the old transactions from before 8/1, but there are 2 send transactions that were not in my original wallet, no idea where they came from.  There is also a send transaction that didn't appear on the new wallet.  My balance is adjusted by those amounts, and is not right given my balance of Bitcoin on 8/1.  Not sure what (if anything) i did wrong.  Ideas?

Thanks