Medieval Siege by Kitbash3D silently fails to download when Add To Project

Summary

I purchased Medieval Siege by KitBash3D, but clicking Add To Project shows a progress bar for a second then does nothing.

What type of bug are you experiencing?

Purchasing

Steps to Reproduce

Purchase Medieval Siege.
Try to add it to a project.

Expected Result

The progress bar should show for a long time while it downloads several gigabytes. Then the drop-down button should change colour from grey to yellow. And the selected project should include folders.

Observed Result

Progress bar shows for 1 second. Nothing else happens.

Platform

Epic Games Launcher
Fab Plugin

Operating System

Windows 10

Additional Notes

[2024.12.04-21.36.32:587][270]LogOnline: Warning: OSS: Invalid response. CorrId=UE4-(redacted)-(redacted)-(redacted) code=404 errorcode=JsonErrorUnknownCode errormessage=Server error of type JsonErrorUnknownCode errorraw={“Not Found”:“Could not find any manifest download info with artifactId=Medieval(redacted)”}
[2024.12.04-21.36.32:587][270]LogOnlineFAB: Warning: OSS: GetVaultLibrary_HttpRequestComplete - request failed
[2024.12.04-21.36.32:587][270]LogPortal: Error: FCommunityPortalOSSImpl::OnHandleRequestFabManifestComplete failed! 0 0
[2024.12.04-21.36.32:588][270]FCommunityPortalVaultCache: ERROR: Manifest download fail - (redacted):(redacted):Medieval(redacted)
[2024.12.04-21.36.50:803][346]LogOnline: Warning: OSS: Invalid response. CorrId=UE4-(redacted)-(redacted)-(redacted) code=404 errorcode=JsonErrorUnknownCode errormessage=Server error of type JsonErrorUnknownCode errorraw={“Not Found”:“Could not find any manifest download info with artifactId=Medieval(redacted)”}
[2024.12.04-21.36.50:803][346]LogOnlineFAB: Warning: OSS: GetVaultLibrary_HttpRequestComplete - request failed
[2024.12.04-21.36.50:803][346]LogPortal: Error: FCommunityPortalOSSImpl::OnHandleRequestFabManifestComplete failed! 0 0
[2024.12.04-21.36.50:804][346]FCommunityPortalVaultCache: ERROR: Manifest download fail - (redacted):(redacted):Medieval(redacted)
[2024.12.04-21.36.55:708][636][MainRouter] GoToUrl(‘https://www.fab.com/listings/8e759da3-2799-4f6b-80d0-a2e950cf96d5’)
[2024.12.04-21.36.55:708][636][MainRouter] Resolved To: ‘https://www.fab.com/listings/8e759da3-2799-4f6b-80d0-a2e950cf96d5
[2024.12.04-21.36.55:709][636][MainRouter] Best Match: invalid - [83] states compared
[2024.12.04-21.36.55:709][636][MainRouter] Externally navigating to ‘https://www.fab.com/listings/8e759da3-2799-4f6b-80d0-a2e950cf96d5’.
[2024.12.04-21.36.55:709][636]LogOnlineIdentity: Warning: OSS: GenerateAuthRedirectUrl request failed. URL does not require single sign-on
[2024.12.04-21.36.55:713][636]FCommunityPortalManagerImpl:LaunchUrlSSO - Skipped launch of url: https://www.fab.com/listings/8e759da3-2799-4f6b-80d0-a2e950cf96d5
[2024.12.04-21.36.55:713][636][MainRouter] Navigation Canceled.