Can't use keyboard to navigate the add emitter menu in the system overview

1. Create and open a new system with a fountain emitter.
2. Right click on the overview graph and navigate to "Add Emitter"
3. Enter "Burst" in the filter box.
4. Press down to select a row.
5. Press enter to select an emitter to add.

Result: Nothing happens.

Expected Result: The selected emitter would be added.

UE-74991 also affects Valve Index

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Bonjour j'ai un petit problème c'est que je ne vois plus l'onglet "scability" pour changer les graphismes de uefn et j'ai pas trouvé l'option pour le faire revenir ?

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