Validation error if Fab content used in 38.0 - not possible to estimate size & publish

Summary

Hey guys, after the 38.0 update I can’t evaluate the size of the project - always getting this error:

LogValkyrie: Display: ProjectSizeRequest::CancelFlow for c3b9aa41-4a12-86d3-3b62-9a98fc2ea0fd - Could not find the requested resource

So just created a new project and as soon as I start using any of my Fab content (imported via Library > add to content Browser to Referenced Content folder) elements from any set I bought I am getting this error.

There is a complete error related log screenshot attached.

I tried with many differen Fab assets and they all caused this error - same error doesn’t matter which fab asset was used. No error as I removed it.

Important: its not enough just to start the Size estimatation to reproduce! Always first save and launch the session - only than the new version will be cooked and then the size estimation will drop the error if you used the Fab asset or no error if you removed it.

I have last time tested with these sets (different assets from the sets:

/listings/b3003570-f14b-4f5d-9b46-73450bc65d5d
/listings/e914f181-2ea9-46af-93a2-95618897a441
/listings/357911db-b633-4e2f-a887-71fae445a488
/listings/06b910cf-49f4-4144-a744-418df3c0d348

No errors on manually imported fbx assets.

I can not avoid using the Fab content - I spent a lot of money and my game uses many of the Fab assets.

Can I maybe get a link to download and reimport them manually?

What type of bug are you experiencing?

Publishing

Steps to Reproduce

  1. Create a new experience
  2. Open Fab and add one of the bought sets (static meshes, decorations) to the 3. 3. Content Browser
  3. Add this asset to the level
  4. Launch the Session and start the project size check
  5. You will get the error: LogValkyrie: Display: ProjectSizeRequest::CancelFlow for c3b9aa41-4a12-86d3-3b62-9a98fc2ea0fd - Could not find the requested resource

Expected Result

No errors on content which was bought from Fab Marketplace and used in the game
The project size and publishing work with the Fab Content

Observed Result

Not possible to evaluate the project size with Fab content
Evtl. not possible to publish the project with Fab content

Platform

all

Operating System

Windows

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Additional Notes

I have reported the issue also in the UEFN support section and they asked me aslo to report it for Fab - the issue is here: