My creative project was launching normally on previous versions, since v 29.0 my map and specially Fortnite assets cause launch session to crash UEFN after 40% upload, any fix for this problem, thanks.
Thank you for your report! Can you please re-post using the “New Issue” option on the Issues and Bug Reporting forums? Posts with this feature are connected directly into our development team so we can quickly get to them!
For more information, such as how to get the reference ID, please check out the article here: Using the Creative and UEFN Bug Reporting Form