I am guessing you created a Custom Budget and typed in your category as "Misc." (Misc with the period). When you enter an expense, do you type in the Type or do you pick one by clicking the plus sign next to the Type text field? My guess is that you typed in the Type as "Misc" (without the period) and so when you check your budget, the expense shows up in an unbudgeted category because you budgeted for "Misc." not "Misc".
