Failed to sync project with content service. Error. Connection to the server failed

[xiRenegadEix]

Summary

Working on UEFN, I can’t update or test my maps, or even create a new map.
I can do the changes and save them, but everytime I m gonna Launch Session, it fails. and receive this message “Failed to sync project with content service. Error. Connection to the server failed”. It’s been a week on this… I tried everything, cleaning cache, reinstalled fortnite, uefn and epic launcher, wifi, cable connection, firewall permitions…

Please select what you are reporting on:

Creative

What Type of Bug are you experiencing?

Publishing

Steps to Reproduce

Everytime I m gonna Launch Session, it fails. and receive this message “Failed to sync project with content service. Error. Connection to the server failed”

Expected Result

Launch Session

Observed Result

Failed to sync project with content service. Error. Connection to the server failed

Platform(s)

Unreal Engine for Fortnite

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[Jimbohalo10]

hi ,
on the screen above, you can see validation failed.

the picture below shows how to run fix validation.
You need to successfully pass validation some assets need fixing.

You need to see the number of successfully validated assets message
before live link connects to content server

Message dialog closed, result. Ok, titie, onabie to Piay, text. validation failed
LogValkyrie: Unable to play: Validation failed

Type control + A in outliner to select all assets to be fixed

Please look at the Validation documentation
Validation and Fix-Up Tool in Unreal Editor for Fortnite | Unreal Editor for Fortnite Documentation | Epic Developer Community