I failed my AUD recently. During waiting for the score release time, I also studied for FAR.
I used to plan to take FAR , But I'm not sure rn, as I heard that AUD and Bec will be harder after July,2021.
Did you feel any changes on the AUD exam ?
I haven't passed any exams yet but if it was me I'd try to retake AUD before June 30th. I heard they're adding things to AUD and removing things from FAR but it'll still probably be just as hard. But I guess it also depends how far along and confident you're feeling with FAR. If you've put in a week or 2 I'd just go back to AUD.