Error launching my map

[ByGlitch]

Summary

I’m getting the following error when trying to launch my project in Unreal Engine:

LogValkyrie: Error: FlowStep_ResolveSessionCandidates(): Candidate module [b5489c63-4ee6-693a-582a-b09729ddca2d] failed validation with error: [epicgames.com.errors.cook.non_zero_exit]

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Other

Steps to Reproduce

It happens when I try to launch session on my map

Expected Result

Do not show the error

LogValkyrie: Error: FlowStep_ResolveSessionCandidates(): Candidate module [b5489c63-4ee6-693a-582a-b09729ddca2d] failed validation with error: [epicgames.com.errors.cook.non_zero_exit]

Observed Result

I can’t launch the map

Platform(s)

PC

Island Code

0365-8957-3309

Upload an image

[UseCodeCordd]

Blocked From Launching a Session

same here

[Rexar505 (RexH)]

A hotfix has been pushed, try again now.

[OKomili]

Similar error for me, though mine complains about matchmaking timeout.

Unable to Launch Session (Matchmaking Time Out)

Summary Unable to Launch Session in our project (matchmaking error) Please select what you are reporting on: Unreal Editor for Fortnite What Type of Bug are you experiencing? Other Steps to Reproduce Press Launch Session Expected Result Session would launch normally Observed Result Session will not launch Platform(s) PC Island Code 7627-8175-3618 Upload an image [uefnbug.png] Additional Notes This issue is only affecting this one project since v40.00 was deployed. I am able to launch …

[Gustavo9 (Gustavo)]

Same