Hi....I've currently been using an older interface with logic pro with no issues for the first few days, it then started causing the orange mic emblem to flicker and also send sound interference to my headphones.....this started by its self and wasn't caused by changing any setting's.....after a time if kept turning things on and off and shutting down it stopped....allowing me to continue, after an hour or two its back, i then left it a few days and next time i powered it all up it was fine...worked for a couple of days without a hitch....then suddenly its started again inbetween takes its just took it upon itself unplugging mics or cables does nothing....only when the interface is unplugging will the flickering stop.....anybody else experience this?.....any help would be most welcome, i cant record audio until i fix the issue....thanks....