[WIN32SS|CURSORICON]Invalid handle

Still happens (please see your logs):

err(win32ss/user/user32/window/cursoricon.c1872) Invalid handle? Module=XXXXXXXX, error 126.

cursoricon.c:1871-1872
/* This should never happen */
ERR("Invalid handle? Module='%wZ', error %lu.\n", &ustrModule, GetLastError());