You can email support@neuraldsp.com and they will have you send diagnostics and related details to help resolve but is this occurring on every preset (factory/user) on the QC? You will definitely need to provide more details and or share your preset. Worst case, if it’s defective etc., support will be the only ones who can help anyway for replacement but I doubt its a HW related issue and more than likely it’s related to how your output and or individual FX blocks are configured.