Strange keyboard bug

hi all,
i noticed a vvvvery strangebugusing the kinect skeleton patch. Sometimes the keys h, c and v stops to work in vvvv. I mean that if i open for example the inspector, or the node browser, this letters don’t go, i click it but nothing happen. i noticed that if i use a keyboard(global) and a keymatch, in the inspector i see the key pressed, but in the vvvv interface the keypress does nothing

if i restart vvvv with the patch, it works. it’s a “sometimes” bug