So, my player, lost morale (IDK when exactly but was from very good to good) on the same day he was bought before he even played his first match that same day later, and he stayed at this moral level even after his near MoM match performance, while all others went to very good (or they were already). I am not saying this not possible or there is no good explaination, but it is something really unexpected.
The scenario was as follows.
(1) bought a recommended player
(2) player did not start the very next match as it was close
(3) later, the player was noticed with good morale
(4) the player started the second match of the day and his performance was second best (2 goals and 1 assist)
(5) his morale stayed on good
In real life, when a new player just came, it is something wise to not start him immediately. In the game, new players come with 80% condition too; another reason to not start the player in the very next match if the time of match is close. But here Nordeus punish for making good decisions?
Secondly, the player started the second match of the day. He should be happy, and given his performance, he should be even happier. But, here he is not made to gain morale.
This is another indication that certain things are biased towards the negative side; dynamic but biased so that users spend more even if the user made a proper decision in terms of football management.