Chalice Box Event Problem - 20% Magic Boost Not Added!

[King Ben]

Virtually impossible to track. What I have done before getting a notable prize:
a. Screenshot of stats before the prize
b. Screen shot of the prize
c. Screen shot of stats post the prize

In this case, I also took screenshot of the stats one hour after the bonus is reflected in my individual bonus section. By toggling between these screen shots, the issue becomes obvious.

I do this only for notable prizes so 'minor bonuses' like 2% increase and like are not tracked. I have no way of knowing if they are effective. 20:80 rule applies.

Could it be like this guy says, that your stats had already increased and all you were missing was the wording in your bonus unit category? I mean, people have so many bonuses for this and for that now a days, how would you even be able to calculate that you were missing one?