For anyone still experiencing this issue, can you please do the following and report back your island code if you are still experiencing issues with being blocked on publish due to “Experimental Features”
- Change the flag in your .uefnproject file to be False for
"bIsExperimentalContentAllowed":Info here: Fortnite Ecosystem v37.40 with Known Issues - #6 by Flak - Ensure that One File Per Entity is not checked in your Beta Access Tab