Random small amounts in brought forward balances

SUGGESTED

I have been trying to balance a transaction listing to my TB. In doing so, I have found that a small amount of my P&L nominal accounts have random brought forward balances on them, such as 0.68 and 1.97.

When we ran year end, we didn't have any P&L balances on the Opening TB. Why do we now have brought forward balances on some of them, please?