S-cam won't spin freely after bushing replacement

Hi fellas,
I was working on my Vanguard dry van trailer 2008 and decided to do all wheel seals, scam bushing and s cams replacement they are all worn and all seals are leaking. I installed new s cam bushings and when i slide the s cam it is moving freely as soon as I slide it in the other bushing by the slack adjuster and i tight those 4 bolts the s cam is locking. Looks like it is not straight to me by looking at the bushing by the slack adjuster, any help is welcome

thanks!