Blueprint unable to compile if including a macro that includes one of its functions

UE - Gameplay - Blueprint Compiler - Mar 9, 2017

Blueprints that include a macro that includes one of their own functions are unable to compile. The error message that is given is: Error Could not find a function named "MyFunction" in 'ActorBP_C'. ...

Using the Replace References Tool on Foliage Types producing Unexpected Results

Tools - Apr 6, 2017

A licensee is reporting some unexpected behavior when attempting to replace references on Foliage Types already painted in the world. What happens after the references have been replaced, are the n ...

ACharacter JumpMaxHoldTime quickly prevents jumping on the server

UE - Gameplay - Blueprint - Sep 18, 2017

-Character no longer jumps to full height when on client when setting maxholdtime to anything above 0 in character blueprint ...

[CrashReport] UE4Editor_Engine!FShaderCompileUtilities::DoReadTaskResults() [shadercompiler.cpp:663]

UE - Graphics Features - Dec 6, 2017

Top Crash in 4.18 release Users have provided no comments on the issue Source Context:// Read single jobs 651 { 652 int32 SingleJobHeader = -1; 653 OutputFile << Si ...

Blueprint iOS projects can't package For Distribution

UE - Platform - Mobile - Mar 23, 2019

This issue doesn't occur using a project with source code This issue doesn't occur in a blueprint project if For Distribution is disabled (using a development certificate and provision) So far this ...

VoIP loses functionality when transitioning levels.

UE - Online - Oct 23, 2019

VoIP between client and host is lost upon transitioning levels. ...

Collision lost from body when using world composition and streaming

UE - Simulation - Core - Mar 1, 2021

Physics object from a streamed level does not interact with other physics objects in persistent level. ...

Moving a water body causes engine to drop fps and spike ms

UE - Graphics Tools - Terrain - Water - Apr 26, 2022

Moving a water body lowers performance on the engine. The fps drop from 120 to 30 and ms spike from 8 to 30. This issue occurs in 5.0 Binary and 4.27 Binary on Windows. On Mac, FPS drop and ms spike ...

Merging Splines causes Engine to Crash in 5.1

UE - World Creation - Worldbuilding Tools - Merge Actor - Dec 15, 2022

Attempting to merge two spline actors causes the Engine to crash. This issue occurs with the Steps to Reproduce regardless if there are more branches added to the tree branch spline/enabled, and reg ...

UObject set to DefaultToInstanced will show all properties declared at the blueprint level, even in they're private and not instance editable

UE - Editor - Workflow Systems - Apr 19, 2024

Licensee found that when creating a UObject class with DefaultToInstanced and EditInLineNew specified, and then a derived BP was created using the UObject class and used as a variable type in an act ...