At approximately 10-11pm ET on March 1, we became unable to launch sessions in UEFN. After launching a session, the bar gets stuck at “Validating uploaded content” for 5-10 minutes and then eventually lands on the error ‘Failed to resolve validation session’. Around this time yesterday, this was happening on multiple maps. Since then, it has resolved on some maps - but we are still encountering the error on our large open-world map (3469-7377-0976), preventing on pushing a critical update.
We have tested this across multiple snapshots, including snapshots from last week that definitely worked and are the current live version that players are playing. Across all snapshots, this error persists.
This is the starting error all fails after this when talking direct to server
{
"host": "content-service.bfda.live.use1a.on.epicgames.com",
"method": "GET",
"path": "/api/content/v4/validation/session/aa03bb84-509b-488f-8f2e-7528ffed47f7/candidate/562929a6-493e-2b6d-91eb-ceb08b29db50,%20Raw=%3C!DOCTYPE%20HTML%20PUBLIC%20%22-//W3C//DTD%20HTML%204.01%20Transitional//EN%22%20%22http://www.w3.org/TR/html4/loose.dtd%22%3E",
"errorCode": "errors.com.epicgames.content-service.auth_required",
"errorMessage": "No authorization header."
}
This looks like you are maybe not login to content server .
Clear the cache and try logging in from
https://content-service.bfda.live.use1a.on.epicgames.com/#/all-projects/@personal
We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.
If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.
We didn’t change anything on our end, but this issue has now disappeared and we are able to successfully access our map again. We still believe this issue is worth looking into as we would like to better understand the cause to avoid it from happening again. But for now, we are once again able to launch into sessions.
