oh okay its actually a bit interesting:

• press play, observe pressing enter causes command toast to play

• hold ALT and click anywhere off Studio to focus something else in windows ( for instance click on the start bar )

• release ALT

• click back in studio and observe that the ENTER key does NOT cause toast to play

• focus something else in windows ( for instance click on the start bar )

• hold ALT and then click anywhere into studio to give focus back to studio

• observe enter key DOES cause toast to play

In my integration I fixed it like this:

        case WM_SETFOCUS:
            view->KeyUp(Noesis::Key_LeftAlt);
            view->KeyUp(Noesis::Key_RightAlt);
            return false;

so it seems maybe there is some flag tied to if the alt key is down or not, and this does not get set properly when gaining / losing focus. please let me know if repro steps are unclear.