Unreal Engine Issues

[CrashReport] UE4Editor_UnrealEd!FBlueprintCompileReinstancer::ReplaceInstancesOfClass_Inner() [kismetreinstanceutilities.cpp:1880]

This is a somewhat common crash that has occurred throughout the 4.17 release. Users have not provided any description of their actions when the crash occurred. The callstack is similar to some ol ...

Crash attempting to use a struct containing a deleted struct in a blueprint and compiling

REGRESSION: No, occurs in 4.17 (doesn't repro in 4.16 because orphaned pins wasn't a feature) Crash occurs when the user attempts to use a struct containing a deleted struct in a blueprint. ...

Ensure compiling a blueprint with itself as a Child Actor Component

Ensure occurs when the user creates a cycle with a blueprint containing itself as a child actor component. ...

WorldContextObject is null in BP function library

[CrashReport] UE4Editor_CoreUObject!FScriptArrayHelper::EmptyAndAddUninitializedValues() [unrealtype.h:2703]

This is a trending crash coming out of the 4.17.0 release. Based on user descriptions, this crash occurs on Play or Compile for affected users. User DescriptionsAgain crashing when I hit playIF I C ...

Actor Component instances have their settings reset to default when compiled in 4.17 (Compilation Manager)

REGRESSION: Yes, does not occur in 4.16 When converting a 4.16 project to 4.17, any actor component instances will have their settings reverted back to default when the user compiles the blueprint. ...

Strange crash occurring from project When upgrading from 4.16 to 4.17

There are a string of crashes that are occurring with UMG as the cause of the crash. This occurs when the project is upgraded from 4.16 to 4.17. With the project provided making any change to the B ...

DeterminesOutputType metadata does not work for soft reference types (TAssetPtr / TAssetSubclassOf)

It looks like FDynamicOutputHelper::IsTypePickerPin and FDynamicOutputHelper::GetTypePickerPin need to be updated to support soft references. ...

QABP_Containers is dirtied when opened

REGRESSION: Yes, does not occur in 4.16.3 In QAGame, the blueprint QABP_Containers is dirtied (needs to be compiled and saved) when the user opens it. This occurs every time the editor is restarte ...

[CrashReport] UE4Editor_CoreUObject!UPackage::Save() [savepackage.cpp:4597]

This is a common crash affecting users in 4.16. Users have not provided additional information. Source Context// Set the parent index, ifthis export represents a UStruct-derived object 4589 ...