Hello Everybody!

Im using a Fireface UC and lately i have a problem with the latency.
I have an old Allen & Heath GL 3300 Mixer connected to it. The outs of the mixer go into the inputs of the Fireface. But there are 2 Outputs from the Fireface AN 3/4 going back into the mixer, so i can use the hardware effects connected to the mixer on tracks coming from the computer.
Now i have the problem that there is quite a big delay when i compare them to the original track. It doesnt change when i change the latency settings in Logic.

Any suggestions how to get rid of the latency here? I didnt have this problem before.

Thanks for helping out a dummy!