Audio "get mono filters" when the project is open again

Hello,
 
First, if i misspell some words, please, forgive me, English is not my first language.
 
Second, this is my problem:
I'm working on a project with drums and effects and all that stuff. (Sometimes, with Rapture Session), then, i save it for later and i open it the day later or so, and the drums and some audio sounds with filter, is not like "stereo" or "live" like the sound is by itself when i try it the first time i use it on the project.
 
So this is getting annoying because when i export the project, it still sounds with this "mono filter", so everything i do in SONAR Steam Edition just doesn't work for my projects and clients... 
 
Any idea how to solve this or patch it up?
 
Thank you for your time.