The FX conversion fee will be applied to orders made within AutoInvest Pies as well should the currency of the traded holdings differ from the currency of your account.
There are no additional fees next to the FX fee. It is normal that the holdings are at a slight loss immediately after purchasing them since buying them is on the Buy price, while their result is calculated at the Sell price, which will always be lower than the Buy price due to the Spread.
The FX fee for each executed order can be checked in History. Furthermore, its amount can be seen for individual orders before their submission under the ‘Review Order’ window. This tab is visible when you place individual orders outside of Pies.