RPi Ticking on USB

My RPi 3 melted , so I replaced with a RPi 4

I refitted the Allo Digione card and loaded Roipeee xl

I thought I would check out USB via my Audiolab M-DAC. I get a rhythmic ticking noise UGH

Switch to Digione no problems. Disabled the HAT same problem ,

Can I run USB and the Digione on the same RPi and switch between the 2 zones in Roon ?

Anyone any ideas ?

Yes you can.

For info , it would seem the Audiolab M-DAC has known issues with USB

I fitted the Allo Digione and all is running fine on SPDIF

Bye bye USB …