Interface Question

Lets see if I can present this clearly..

All of the T4 interface procs have two effects, the main one at 100/75/X % then the second one and whatever value.
My question is....are these debuff effects linked in regard to the Four Stack limit for said effect.
In other words...say your in a league, and 4 people have already hit the AV with attacks doing the 100% chance for -to hit from Whatever Interface, if you then attack with YOUR t4, I am assuming it will...
Refresh the -to hit?
Replace that stack of debuff?
Do nothing at all, because the game already 'sees' the 4 stacks on the target?

And..how does that function via the secondary effect? If it is ignoring the first effect due to max stacking, will it also not bother to apply the secondary effect also?

I have a lot of the T3 75% fire damage procs on my toons. And I was looking at the damage logs while fighting Nightstar, and noticed that well into the fight, the game wasn't reporting my reactive dot as firing.

Now, this could just be due to lots and lots of stuff going on and the server missing the dot. It could just be me missing the dot reports. OR it could be that 4 other people in the league, with the -res proc, have reached stack limit, and locked my dot effect out of proc'ing, because the game sees it as max.

Not saying this wouldnt be sort of fair (since no other proc can work beyond 4 anyway) but it just got me thinking. If anyone has wondered about this or has an answer to how it works..

I'm not familiar with any "Four Stack limit" for debuffs. Is that something specific to the Incarnate debuffs?

Yes..the interface procs were stated as having a max of 4 (I think) stacks per target..so you could not have a league full of people with one proc, and floor a particular stat.