UR242

Hi guys,
my name is Raffaele, I recently bought a UR242, in order to improve quality of material recorded and stuff;
problem is I can’t get it working with Amplitube 4 and Garageband, tried everything possible, installed dspMixFx,
Tools, new drivers.
Only thing I get is my guitar sound without effects even when both softwares are off, so it’s basically working like
a pure sound card.
OS is High Sierra BTW

What am I missing?

Thanks in advance
Raffaele