Failed to Cook

General Issues and Bug Reporting
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1

Summary

When launching a session getting a bug saying “Failed to Cook” even tho I made changes to a tracker device and added nothing new.

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Assets

Steps to Reproduce

I just lauched session and I am getting this error

Expected Result

Failed to Cook

Observed Result

Failed To Cook

Platform(s)

UEFN

Upload an image

UEFNTicket.jpg
UEFNTicket.jpg1944×1084 292 KB

2

SAME failkde to cook modules fix asap
helppp1

3

FORT-938938 has been created and its status is ‘Unconfirmed’. This is now in a queue to be reproduced and confirmed.

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image

5

Same issue

6

Also started getting similar errors on multiple maps
UnrealEditorFortnite.log (3.7 MB)

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image2560×1043 453 KB

7

Also having same issue for an hour now. Somebody making changes on a weekend

Capture
Capture1474×410 67.7 KB

. Nice!

8

mY SESSION NOW LOADS.

MANY THANKS

1 Like
9

Can also confirm I’m able to launch sessions successfully

10

Also had this problem only one error prompt: http_error_500:valkyrie-cook-api.prod.ucs.on.epicgames.com
Also the project worked before with no differences

11

I got the same issue as well; it’s totally stopping me from testing anything

12

I am also having the same issue for the last few hours. It went away for around an hour then has started happening again around the last 45 minutes.

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It worked for now only tried once but it works

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The error seems to be back

15

Seems to be back again

16

Same issue when I try launch a session

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BRING BACK UEFN

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fails to cook when pushing changes or trying to create a private version

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Got the same error on every project

20

I added new Tracker Device and since then it is now failing to create Edit Session everytime because of “Candidate module [*] failed validation with error: [http_error_504:valkyrie-cook-api.prod.ucs.on.epicgames.com]”