The way I think of it, I think that FSB considers a trade as an Open transaction later followed by a Close (or Reduce or Reverse) transaction that results in real profit or loss to the account. Anything in between like adding lots does not count as a trade since they don't change the account balance.
If you have small profit losses, it's could be cases where the strategy Reverses, like on an opposite signal. Often, I've found the Reversal comes almost at the initial entry. Since FSB closes the trade to go in the opposite direction, it counts as a trade with a profit or loss. But that is only my guess -- if it's true, you would probably see it in the Journal, there would be a lot of "Reverse" or "Reduce" transactions with small amounts in the "Profit Loss" column. I found it helpful Mr Popov has added "Journal by Positions without Transfers" view for the Journal, it removes the Transfers.
Another way to verify (or prove a bug) is dabbler's method of exporting to Excel and sorting by Transaction:
Export > Positions without Transfers ...
save to your computer
open in excel
select the column titles and all the data
Data > Sort By ... then choose "Transaction", or "Profit Loss"
If you sort by Profit Loss, then you can go to the middle where the small profit and losses are. If there are no Close / Reduce / Reverse transactions, but you see a high count on Trade Distribution chart, that would suggest a possible bug. Then please post, if you can add simple strategy that shows it, I'll look into it.
If you sort by Transaction, look for Close / Reduce / Reverse, then check if they have small profit / losses.