Weird problem with Bitcoin Cash

[hirvivaara]

Hi.

I'm a little late with this and the coins missed is not much, but still it's weird.

I had some funds in my Bitcoin wallet (Bitcoin Core QT) when the Bitcoin Cash fork happened.

Now I tried to import my old keys to the Bitcoin Cash wallet.

I ended having eg: 0.5BCC 19.06.2017 and somehow those coins were spent 11.09.2017. So the balance is 0.

Which is really weird, is that spending was an amount I spent in my actual Bitcoin Core wallet, so why does it show that I spend that amount of coins also in Bitcoin Cash?

Is there something I don't understand?

[1bitcoinsnet]

Sounds like that wallet piggy backed the BTC trade?