Problem with adjusting for plugin latency, help needed!

Hi guys, here is the situation:
Ive got 2 kick drum tracks in my session. When I pan one track 100% left, and the other 100% right, and with no plugins on, both tracks are perfectly in phase. Now, when I insert plugins on the left track, and leave the right track without any plugins, I’m immediately having a phase issues. Shouldnt cubase be compensating for the latency coused by plugins ? It makes no sense to me, and Im running out of time to finish my project. Any ideas anyone ?
P.s. the Constrain Delay Compensation button is not on.

Im sorry guys, it was differences in eq that coused phase issues, you can delete the thread