Certain blueprints default themselves; requiring reloading.

When I open the editor, my Inventory Item base object, and all its children, return to the default state (empty or zeroed data in the variables). The inventory item itself inherits from the Object, it has only a few functions and in general is not very complex.

If I reload the assets with Asset Actions → Reload, then they return to normal. Obviously this is very annoying to do each time I open the editor, and I don’t know if this is going to cause problems with assets down the line. Does anyone know what this issue might be? I ran into the same problem before on a completely different project and never figured it out.