Tascam Model 12 - Audio Drop outs & Export Crashes

Struggling to get my TASCAM 12 Mixer working with Cubase. Constant audio dropouts (Also with Spotify/Youtube /Ableton) and crashing on export 9 out of 10 times.

M1 MacBook Pro / OSX 12.

Swapped Cables

Tried using Blackhole

Connected directly to my Mac, tried all ports, hub same issue.

Is anybody using this desk successfully ?