Wallet Transactions don't make sense...

I have been around for years, but I am so stumped by this issue that I had to register just to hopefully get some clarification. I have moved into mining various altcoins as of late, however I have now encountered an issue numerous times where the "Number of Transactions" does not match the actual list of all transactions.

The latest example...

I have been mining Grand Coin for the past 48 hours. My "Number of Transactions" shows as 5, but when listing all Transactions there are 4. 2 Mined and 2 deposited into an exchange, why the 5th is a mystery. I have restarted the client, ran the client with "-rescan" and even mined further blocks since that one with no issues. I am just very confused as to where this missing block is that I mined?

This has also happened to me on Fast Coin, Stable Coin and a few others in the past, why I would like to figure this out. Thanks!