When there is a load error it currently shows a message for each error and when there are lot it completely blocks UE’s UI as each take up a fair amount of space, so I think it should either have a auto closing message and/or be in one scrollable window and/or have a maximum limit to the amount of load error popups that are displayed so it doesn’t block the UI and the user has to click dismiss on each of the errors.
Also, when the message output window is docked it still shows separate load error popups, I don’t know if this is a bug or not.