Help with Main Menu browsing

[MikeSiLVO]

@BobCratchett
Not sure if you have time to help with this or if this is the best place to ask you but I am having an issue with the main menu. I'm hoping you can advise on the best course of action.
Relevant forum post.

I am defining the custom grouping for everything in the menu but I did not think of browsing through it like, with genres for example.

When I replace the video library section HERE with
<content>video</content>
Then all the > items are empty. If I completely delete all custom grouping then they work correctly.

Any advice?

Thanks