is this a bug?

[gkassimis]

i have some reserves i train on purpose to enter negotiations in order to gain tokens by sellng them. since my player had reached quality 59,9%, i started training him in special ability. i do this many times. train them in ability or position. but today i played a friendly game and after the game instead of increasing in ability he gained quality and as a result he reached next star and now he is useless to me. its the first time it happens to me. is it a bug or something has changed?

[Jeeves]

Hey gkassimis, there are two training elements that always increase a player's core attributes instead of being added to an Ability/Role currently in training. These are the Man of the Match title (for the highest rated player in the winning team), and the daily Training Gift. Both of these add 4% to a player's attributes, and always to his attributes. Never to a Role/Ability.
Since you say that he gained quality after the friendly match you played then he was the top performing player from your team.

[gkassimis]

true, he was man of the match. never had this. cant believe my luck