When the VAOutline window refreshes (for example when I input any content even if it�s a comment), it seems that due to the focus change, the content inputted by the IME disappears.
VA Options -> Display -> Display VA Navigation Bar:
and see if this fixes the problem? If so, then I suspect you are seeing a known problem that we have a fix for, but what is the IME input? I don't recognise this. Without knowing what it is, I cannot test to see if this is fixed or not.