Importing audio problem

I have a symphonic score that I’m importing into cubase on 20 separate tracks. It’s about 8.5 min long. It starts of great but about 3/4 through the tracks seem to be out of sync, not sure why. Any help would be appreciated.

Try checking to make sure your project is set to the same sample rate as the tracks. Are your tracks in music mode and your tempo set the same as recorded tempo?

The sample rate is the same. I’m not going to record anything just importing the audio and setting up some EQ so not sure that in this case I’d have to set up a tempo on the track…do I ? As an example, I import Violin 1 and Violin 2 on separate tracks. When playing back about 3/4 of the way through Violin 1 start going a little ahead of Violin 2.

I want to clarify that I meant, did you set the tempo of your project to the same tempo the original files were recorded at? If the tracks are in musical mode, that may make a difference.