Greetings,
I have observed that if you place a Spawn actor node in an Editor Widget after the Preconstruct or the Construct, if you do Run Editor Utility Widget and place the tab in any place of your editor template, it will Spawn that actor on the scene, however, if you close the project and try to reopen it, it will crash before opening.
But if you put a delay before the Spawn, it won’t crash.
(v4.22.1)
Regards