Fx channel

I am putting an fx channel and sending the bass through it it has a compression on it. But it’s also being added to my guitar channels ? Which are sent to a reverb fx channel. Every time I try to change the guitars back to the reverb fx the bass channel also changes without even being touched? And vice versa what am I missing here?
Had anyone else had this problem

Obviously some wrong routing, or linked channels. Hard to tell with so little real info.