Adding a component to a subclass after the component was declared in the parent class results in the component not being editable if a Blueprint had already been created using the subclass. This only occurs when a Hot Reload takes place after the code is added to the subclass' source code.
This was found to be happening in Main up to CL 2408355. After this CL in Main, hot reloading after adding a component no longer worked (see
Close the Editor and re-open the project in the Editor.
The PickupMesh component has been added to the Blueprint, but it is not editable in the Details panel.
The PickupMesh component has been added to the Blueprint and is editable in the Details panel.
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