Disallowed Wash Sale Loss

I have a small loss of $4 on Form 1099-B.  In box (1g) Wash Sale Loss Disallowed it also show the same loss of $4.  When entering the information for form 1099-B in Turbo Tax it also states that if the entire loss is disallowed enter "blank", by entering blank it actually allows the loss.  I am confused?  Is the loss disallowed or not?

 

Please explain.