Not sure this is necessarily a bug, however, when managing an international side, you are unable to reallocate a player’s position. For example if they are a MAC for their club side that is how they are for the international side. When you click on the player, as an international manager you are not able to make them a AMC e.g. reverse their position.

I don’t know whether players get punished for playing out of position, despite the fact that technically it is a potential position that they can play at international level. Maybe something to have a think about?

An MA or AM player can play without any penalties on any M or A position, so nothing to worry on that front. We leave it to the owner of the player to decide how he wants the player position to be presented and it mainly impacts in which list the player is displayed when building your formation. If we allowed the international squad manager to change it, then the player owner would see the position swapped, most likely against his/her will :-)