Player switching team

Hi! thanks for the help and sorry for my late reply.

bu the way, here’s what i did:

i created a new season (named “2017-18”);
then, i assigned the season just to players playing this year (for every team);
after it, for switching players i put their old team in the “past team” field (in player profile), and put their actual team in the correct field;
last, i changed the reference season in player list page for every teams, selecting just this season (2017-18).

the result is that, for example, player “X” that played last year for team “Cowboys”, and now plays for “Apache”, it’s shown in both players’ lists of Cowboys and Apache with no reason: if he belongs to the Apache team, Cowboys it’s just a “past team”, why he’s listed as belonging to both?

thank you!