GetPackageLengthForCooking can be much larger than the actual file path length

Tools - Jul 10, 2019

If the file path with the asset contains a project name, the cooking file pathlength is incorrectly increased. The following code in ContentBrowserUtils :: GetPackageLengthForCooking causes this is ...

Generated Installed build Windows only quicklaunch fails because Platforms\Hololens\Binaries directory non-existant

UE - Foundation - Build - Rocket (Installed Engine) - Nov 11, 2022

 Repro Rate 3/3Note: Step 3 in the steps to reproduce can take 2+ hours. When trying to do a quicklaunch for Windows platform in step 11 of https://testrail.it.epicgames.com/index.php?/tests/view/1 ...

Crash After Reimporting Static Mesh With Added Material Slot

Tools - Jan 12, 2017

After importing a mesh without any materials assigned, if you add a material slot and save the material. Reimporting this mesh will cause a crash. The only way to avoid this crash is to import a me ...

Check() when loading a child anim BP used as a linked instance

UE - Anim - Runtime - Anim Blueprints - Jun 7, 2021

Check encountered by CloudChamber. Slack thread: [Link Removed] ...

[CrashReport] UE4Editor_Persona!<lambda_e529d88d0657fbede17be1535bc6d479>::operator() [blendspacedetails.cpp:29]

OLD - Anim - Aug 14, 2017

This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. The callstack is very close to https://jira.it.epicgames ...

Player Controller does not handle multiple CharacterMovement movement modes

UE - Gameplay - Blueprint - Feb 6, 2018

From Bug Submission: The variable in the image I attached is unable to distinguish between multiple characters all possessed by the same player controller. So if one character has this variable set ...

When asynchronously loading levels using the "Async Load Primary Asset" node, the dirty flag of the loaded level becomes Enable

UE - Gameplay - Jul 26, 2018

Asynchronously loading a level that has one or more Actors using the "Async Load Primary Asset" node will enable dirty grug for that level asset. The cause is a modified code(CL-3764602) for the [L ...

Datasmith Metadata returned as empty array on Python Import

UE - Editor - Content Pipeline - Datasmith - Importer - Oct 27, 2020

Metadata information seems to not be available on import. A user has reported that this was working before but I was able to reproduce the issue in //UE4/Release-4.24 cl 11590370 I am currently lis ...

SubCategory of UFUNCTION does NOT work properly if using CallInEditor

UE - Gameplay - Blueprint Editor - Sep 20, 2022

If you use both Category hierarchy and CallInEditor in UFUNCTION, it will result in an unintended sequence as shown below. [Image Removed] And, the following code can solve this issue void FDetai ...

Blackboard interaction crashes engine

UE - AI - May 15, 2015

User Description: "I'm trying to implement AI and following zoombapup's Guard AI YT tutorials. Whatever I do within Blackboard crashes the engine. Yes even a single click on Self key. Here's the dum ...