UltraVNC 1.2.1.1 from rapps - reproducible app-crash on right clicking systray icon

reactOS 0.4.7RC1
UltraVNC 1.2.1.1 from rapps

install UltraVNC from rapps (don't forget to have mfc42.dll in sys32 for the setup)
at the end of setup make sure to select installing the desktop-shortcut-lnks
start the UltraVNC Server via its desktop link
it will show up in systray (next to clock) and will react correctly to left-click
but as soon as you right click the systray icon it will crash reproducibly

It logs then:

(../ntoskrnl/mm/ARM3/pagfault.c:84) Close to our death...

err:(../dll/win32/comctl32/tooltips.c:2151) How did this happen?