Samsung Galaxy S2
During a match, when a player is moved 'position' (e.g. from midfield to forward line; from LB to CB) when changing formations using the drop-down list in the in-match tactics option, the players' selectable roles are those from their original position.
Substituting a player does not update the selectable roles. Restarting a match and re-entering the tactics screen does not update the selectable roles.
This can be reset by sliding any player on the 'Formation and Subs.' screen out of position and back again, even when multiple players have the incorrect