fix for "NoneType object not subscriptable" error in dispatcher encoding validation
fix for "NoneType object not subscriptable" error in dispatcher encoding validation

overdrive3000/skytools,markokr/skytools,overdrive3000/skytools,overdrive3000/skytools,tarvip/skytools,markokr/skytools,tarvip/skytools,markokr/skytools,tarvip/skytools