midi drums trigger when i hit play

I pulled up an old song file from cubase 6.5 on my cubase 9 to update the drums sounds and re mix it. everytime i hit play wether it be spacebar or enter, a bunch of the midi drum notes trigger. As soon as i hit play, ill get the kick, snare and 2 crashes. i dont understand why its doing this or how to stop it. Any help is appreciated. Its super annoying while edititng.