Massive Blocker - All UEFN projects locked after update: Broken references now lock live edit, engine content now disallowed

This didnt use to happen before, but now any broken reference will cause live edit to not launch, locking all our projects and requiring us to delete content. I 've seen a few reports online, like this one: https://twitter.com/bludriveyt/status/1645734119551139840?s=46&t=gjms6wPAPZeEgmvPc6SQ4g
chrome_C8WGqQX503

and so far 100% of our tested projects was locked until we deleted the content that had broken references. Not sure why this is enforced, as it makes no sense to do so (without a tool to tell us what causes it or how we can resolve it), so I am marking this as a hotfix-worthy blocker issue.

Some examples:
UnrealEditorFortnite-Win64-Shipping_Og5Igdk3tO
UnrealEditorFortnite-Win64-Shipping_hRU1Qh7uax


uefn-attachments-2023.04.12-14.01.43.zip (12.4 MB)

The references that are broken cannot be accessed (as seen above)

And Message Log is being extra annoying as it doesn’t let you copy the reference ID, select the text, or press it to see the actor in the project, terrible UX and I can’t imagine how it is to work with multiple asset references.

I am just getting random errors at this point. Engine content is locked too but it wasn’t before? Seems its engine content material functions which are used by third-party assets.

Even Epic made stuff is broken:
Y057QDsgjf

Not a single answer to this? Am I going to have to recreate and reconfigure all the devices in my game? Things that are even referenced in Verse devices… everything is broken.

hi @Wertandrew
Looking in your log the main one is
Found disallowed object type
/Engine/Functions/Engine_MaterialFunctions03/ComplexMotion/Motion_4WayChaos.Motion_4WayChaos
There are 4 entries
200 references to this

=======================
Found disallowed object type
/Game/Effects/Niagara/FXTypes/FXType_WorkInProgress.FXType_WorkInProgress
There are two entries but this is part of Niagra

probably something to do with

2023.04.12-10.47.08:416][328]AssetCheck: Error: [AssetLog] /LuckyBlocks/VFX/VFX_Pound_Dust : Invalid Effect Type:
The effect type on this system was marked as invalid for production content and should only be used as placeholder… (FortValidator_Niagara)

AssetCheck: /LuckyBlocks/VFX/VFX_Pound_Dust contains invalid data.

over 200 references

Can you or anyone zip up disallowed assets so that my testing can be done on them
Thanks

This is an old post. Material Functions that cause this have been fixed now