BP nativization can generate an invalid path including "__TEMP_BP__"

Gameplay - Blueprint Compiler - Aug 27, 2018

The licensee sent us a BP that can't be nativized correctly on UDN. The nativized BP has wrong paths and causes a crash. ...

Changing variable type of event dispatcher results in permanent warning

Gameplay - Blueprint Compiler - Aug 18, 2018

If you change the type of an event dispatcher variable (why is this a thing?!), then you will permanently have a warning of the form "No delegate property found for NewEventDispatcher_0" that will ...

Crash when calling SetActorLabel in Construction Script

Gameplay - Blueprint Compiler - Jul 31, 2018

Calling SetActorLabel in construction script will cause a crash. Also occurring in Main @ CL 4235929 ...

Behavior Tree corrupts as REINST after PIE when using Blueprint Compilation Manager

Gameplay - Blueprint Compiler - Apr 24, 2018

When Blueprint Compilation Manager is enabled, behavior tree node can get corrupted as REINST.  ...

Crash when removing Blueprint function

Gameplay - Blueprint Compiler - Apr 23, 2018

The Editor crashes whenever the reference to the "DeleteThisFunction" function is deleted. ...

Disabling "Skip Unneeded Dependency Compilation" clears spline points on component compile

Gameplay - Blueprint Compiler - Apr 5, 2018

Spline points are lost when compiling BP component. Component is used in PlayerCharacter. Spline Actor Casts to PlayerCharacter and calls a function on this component. Workaround: Open BP_SplineAc ...

Blueprints stay marked as dirty for compilation when using reroute nodes without blueprint compilation manager

Gameplay - Blueprint Compiler - Mar 24, 2018

A licensee has reported a problem where having reroute nodes causes blueprints to always be dirty after being compiled when the new compilation manager is disabled. Regression?: No This occurred in ...

[CrashReport] UE4Editor_BlueprintCompilerCppBackend!FEmitDefaultValueHelper::HandleInstancedSubobject() [blueprintcompilercppbackendvaluehelper.cpp:2148]

Gameplay - Blueprint Compiler - Mar 20, 2018

No user comments in crash group 2143 // We should always be the one creating an instance in this case. 2144 check(bCreateInstance); 2145 2146 // Dummy object tha ...

Construct object fails to assign a value when using the level blueprint - ConstructObject node issue

Gameplay - Blueprint Compiler - Feb 28, 2018

https://udn.unrealengine.com/questions/419239/uk2node-genericcreateobject-compile-issue.html ...

Blueprint component lost when reparenting native base class and component name collides

Gameplay - Blueprint Compiler - Feb 26, 2018

Use attached project to skip c++ steps. Follow from step 6. ...