Latest UE 5.4.1 package builds our project will crash on groom/groom binding assets when trying to load.
Fails on virtual IAsyncReadRequest* ReadRequest(…) when trying to read in the size it is wrong and then will crash when doing an array index.
The crash will not occur if you run and use the cooked content or even if you unpack the content from the PAK files.
We have tried rebuilding, re-creating the groom/binding assets.
Further investigation
It looks to be a problem with us using MetaHuman 5.3 assets. If we re-make the MetaHuman in 5.4 everything is fine. This is not an ideal solution.