Hi team. This is really strange and it happened to me before in my last project and I can't remember how I fixed it but I did.
Anyway, it's going on again. I have a multi out instance and the pad that is assigned to output 1-2 in logic has an echo artifact and every other assigned channel is dry (playing normally). Output 1-2 has no inserted FX in logic, and no FX in Guru either, so there is no earthly reason why it would have an echo/auto pan effect
Anyone experienced this? I suppose I could just leave output 1-2 empty, but it seems a waste.
I just took a look at your project. The answer is simple. You have a delay effect inserted on the Master bus (which works on the Main Output - aka 1&2). When you route other Pads to any of the sub-outputs, this Master effect is bypassed because the Pad is routed elsewhere.
To remove the effect, go to the Mix page and select the Master channel.