This must be a bug: If you sub on defensive player=concede sub on attacker-score?

[Tactician]

In the past (cannot say if it is the same now), substitutions and the act of a manager or a supporter suddenly joining in a match that is already playing caused random instant-like outcomes, including undesirable and even non-logical ones.

You have noticed effects, but nowadays, for me this game looks more like a pre-determined thing. Many matches were as if on playback, and what happened on the pitch had little sense or no sense at all in terms of what the manager did.