Since turns haven’t been clearly defined, turn could very well mean attack. We can only infer from our in-game experiences and move descriptions what a turn means.
We know that a turn is something carried out by one dino at a time (as opposed to a round) because of the “end turn” button when the user is faster and stunned. That means any move the user could have used would have been counted as a turn.
The misconception about turns being the same thing as rounds probably comes from the way debuffs, evasion moves and shields work. For example, if you use Short Defence after the opponent acted first, it doesn’t count the turn it was used as one of the 2 turns it’s supposed to last for. The explanation would be that it hadn’t seen its first round yet, and hence, since turn equals round it should wait for 2 rounds to finish, which it seems to do.
However, the turn=round logic does not work for buffs, like Ferocity.
This is why I say offensive buffs last based on user turns, while defensive ones and debuffs last based on opponent turns. This way, they still last for said number of turns, it’s just that the turns are counted differently, based on relevance. Because an attack buff is only counted for the number of turns that it actually tries to do damage, and a shield is only counted for the number of turns where it gets try and block damage.
Same with evasion, crit buffs, etc.
From the “end turn” scenario, unless you’re pinned you can swap, which would also constitute your turn. Also, if you swap in bleed while a non-SIA creature swaps in, the bleed damage kicks in, signifying that the bleeding creature has carried out a turn. So swap=turn.
Unless the swap is a part of a move, obviously. Anyone who says otherwise should entertain the possibility of Cautious Strike being counted as 3 or 4 turns.
And from the interactions of SI-stun with other slower SIAs, we know SIAs are counted as turns too. This is because you can be stunned for your SIA. And the description of SI-stun says stunned for a turn. Therefore, SIA=turn.
If you follow this logic, none of these “bugs” are bugs. Apart from that one where Evasive Stance lasted for an extra turn.