Islands with sidekicks crash fortnite when trying to go back to the same lobby

General Issues and Bug Reporting
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1

Summary

We have an island with sidekicks and are unable to go back in to a lobby that a player was previously in.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Stability

Steps to Reproduce

Not entirely sure as our map is very advanced, but the log files are showing that the player can’t get something downloaded:
[2026.07.21-19.15.41:651][503]LogCosmeticDownloadCandidate: Error: Download of Companion_BuffCut (Source:IADRequestSource.Loadout Type:IADCosmeticType.Mimosa) completed successfully but owner is null or not a ICosmeticPlaceholderInterface

and then it stays stuck and then crashes

Expected Result

fortnite should never ever ever crash and player should be able to get back in the lobby

Observed Result

fortnite doesn’t load whatever it needs to, stalls out and then just crashes

Platform(s)

pc

Creative island loading screen hangs for 10 min: server accepts connection but match never starts, retry reassigns the same dead session
3

VERY VERY URGENT BUG. Here is a video with a bit more detail. This needs fixing before Thursday or there will very likely be mass crashing issues. https://www.youtube.com/watch?v=byG0g_4fpm0

4

Thanks, everyone. We’re checking into this.

5

FORT-1128278 has been ‘Closed’ as a duplicate of an existing known issue. Origin Issue: FORT-1126759

6

FORT-1126759’s status has changed to ‘Ready for QA’. A member of the QA department is investigating the issue.