https://bugs.winehq.org/show_bug.cgi?id=50489
--- Comment #2 from forinih564@nic58.com --- Still occurs with wine 6.3 , however i found a workaround
if i keep the context menu (the one that appears after right-clicking the tray icon) open then press the shortcut while keeping the cursor somewhere inside the context menu , the capturebox appears if the cursor is outside the cursor , the capturebox responds however it is invisible , appears after hovering over the open context menu
However the capturebox keeps jumping around as i move the cursor, i'll file a separate bug report for the jumping capture box