Team training bonus not working

[Tactician]

There is the possibility of a bug as I have noticed that sometimes the bonuses do not increase as expected. For example, when I did a defence session with the 2x training session, the gain was more than half for the defence bar from 8% to 10% but the gain when an attacking training was done using the 2x training bonus just after the defence session for about the same condition loss gave was only like 1/4 the bar as if the 2x training bonus did not work for that second training session.