Hi Josh,
The call to StageAdditionalDirectoriesFromConfig is related to some project settings. Can you check in DefaultGame.ini? There should be an entry named “DirectoriesToAlwaysStageAsUFS” whose “Path” attribute is empty. You should delete that line.
;I can reproduce the problem if I package with this in DefaultGame.ini +DirectoriesToAlwaysStageAsUFS=(Path="")
Let me know if that helps,
Martin