Rocket Racing crashing method

benjipala4
Tue, 11 Nov 2025 15:20:45 +0000
Issues and Bug Reporting

Summary

Rocket Racing map crash on PS4 and Switch after V38 update when joining group sessions

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Matchmaking

Steps to Reproduce

1.	Launch the Rocket Racing island in a party (PC host + PS4 or Switch player).
2.	PC player loads the island first, and the race starts automatically after 5 seconds.
3.	PS4 or Switch player finishes loading during the race countdown or just after it starts.
4.	The PS4/Switch client crashes with error CE-34878-0 (or returns to the lobby).

Expected Result

Both players should load into the island and start the race together without any crash, regardless of platform or loading time.

Observed Result

The PC player starts normally, but PS4 and Switch players crash to the home screen (CE-34878-0) or get returned to the Fortnite lobby.
Happens consistently when joining a group, but not when playing solo.

Platform(s)

PC (Windows), PlayStation 4, Nintendo Switch

Island Code

4927-9643-8362

Additional Notes

The issue started after update V38.
The island uses a Rocket Racing setup with one main level and several Game Feature Data sublevels.
Race Manager device is set to start the race automatically after 5 seconds.
It seems that asynchronous matchmaking causes PS4/Switch clients to join mid-load, leading to a crash.
Reproducible 100% of the time in party mode, never in solo mode.It seems to not be happening on every rocket racing maps though.

1 post - 1 participant