Hello Uwe,
Here are 2 screenshots showing the anomaly. Although the menu text doesn't display they do function if clicked.
If I disable theming in the registry then the popups show correctly.
Further testing shows that this is related to my use of the Road To Delphi IDE theme editor to set a custom colour scheme for my editor.
If I then go into the properties of MMX and set or change any property and save it the MMX menu choices then show up.
All the Best
Peter