DeckLink 4K pro use sample SignalGenHDR

hi
I want to use SignalGenHDR in DeckLink 4K pro card.
when I run the sample SignalGenHDR , the application run but I can not control any item in application.
I try and get the same result both win and ubuntu.
and another sample SignalGenerator can run normally.
I want to use SignalGenHDR in DeckLink 4K pro card.
when I run the sample SignalGenHDR , the application run but I can not control any item in application.
I try and get the same result both win and ubuntu.
and another sample SignalGenerator can run normally.