ProSeries is  not detecting the $16000 limitation. My client has 2 W's, expenses do not 10% of AGI, and wages exceed 16000 yet ProSeries is giving the client the 2106 deduction. 

"ProSeries doesn't detect the error when a performing artist AGI exceeds $16,000 and the expense is transferred to Line 24 of Form 1040, which should be warned by the ProSeries." - I copied from another answer.