UEFN locked at 90%

General Issues and Bug Reporting
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Summary

Every single time i try opening uefn it will always crash at 90% no matter what i do, I restaled uefn i did every single thing i could but uefn will always say that it couldn’t conect to my epic games account. Does anyone have a solution? where I can give my UEFN logs?

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

just launch UEFN

Expected Result

open uefn

Observed Result

UEFN doesn’t launch

Platform(s)

Windows 10

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You can ussualy just put your logs as a reply in this thread, Here are the steps to retrieve them, How to get your Fortnite logs

3

it say “Sorry, new users can not upload attachments.”

4

I suppose you can try uploading the logs to something like google drive or https://pastebin.com/ and then just link to it (you don’t have to sign up for pastebin, just paste the logs and then you can click create new paste and it’ll give you a link)

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https://drive.google.com/drive/folders/103Jn584pjpJRFMsqWKBYMmCqQNd7FRzL?usp=drive_link it that enough?

1 Like
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I believe that should be good enough just make sure to make the link active, it’s currently locked

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uefn logs - Google Drive it is public now

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Ok the error seems to be from this line

Error response received from backend. ServiceName=[OAuth], OperationName=[TokenGrantv2], Url=[<Redacted>], HttpStatus=[400], ErrorCode=[errors.com.epicgames.account.oauth.exchange_code_not_found], NumericErrorCode=[18057], ErrorMessage=[Sorry the exchange code you supplied was not found. It is possible that it was no longer valid], CorrId=[EOS-dcZHU7MtAUC0PThsUPEP5g-QMxWGWfQhEeHBMK8vBQqHg]

Try the following:

Let me know if it helps

1 Like
9

ok i will do this when i return in my home

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10

it doesn’t work

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I can’t really recommend anything, The error indicates there’s something wrong with your authentication. I have no way to know what could cause this error, Does fortnite itself launch and load normally?

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yes it launch normally

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Fortnite not UEFN

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14

My Epic Online Service was not installed it can be the cause?

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I had this error the other day. I closed Fortnite and then waited a few minutes and then launched UEFN. This time it loaded fully.

1 Like
16

Ok