Unreal Engine Issues

Memory usage regression in the editor caused by FArchiveAsync2 buffers

User project crashes after changing struct

GoogleVR fails to package with Gradle

Packaging with GoogleVR (Daydream) fails with Gradle enabled: https://answers.unrealengine.com/questions/678203/417-exporting-daydream-project-with-gradle-results.html ...

Nativized build will crash on load if a member variable in a nativized parent Blueprint class references a non-nativized child Blueprint class asset.

This occurs because there exists a circular reference between the nativized parent BP and the non-nativized child BP asset (which is a data-only Blueprint in this case). Current suggested workaroun ...

Instanced Static Mesh components that are part of a Blueprint aren't visible in Standalone Game

Instanced Static Mesh components created through the Construction Script aren't visible in Standalone Game. Collision is still present. They are visible in all other play modes and if created on Eve ...

Last frame remains on HMD after exiting Play in VR PReview

Last frame is remaining frozen on the HMD when exiting Play in VR PReview Note this can only be seen if you do not remove the VR Headset when exiting, as soon as it stops registering Worn status th ...

Crash when opening a blueprint that implements an interface that has been deleted

Error message for restricted name "CLOCK$" only displays "$"

See image UPB_RestrictedCLOCK$_PathName.png for the incorrect error message. See image UPB_RestrictedCON_PathName.png for an example of how the error message should display the restricted name. ...

UBT crashes when doing an incremental build

There is a consistent crash when incrementally compiling headers containing generated code. The code for launching UHT accesses a property which is null when compiling with the UBT makefile. ...

Action event in the blueprint graph leads to state dirty.

BP state get dirty if the BP graph have action input event. Regression: Yes, it is not reproduced in 4.16.3 This issue is not related to Blueprint Compilation Manager. ...