Unreal Engine Issues
Unreal Engine Issues
[CrashReport] UE4Editor_Persona!FReferenceSkeleton::FindBoneIndex() [referenceskeleton.h:252]
OLD - Anim - Jul 20, 2017This is a common crash affecting users in 4.16, and has occurred since at least 4.14, affecting more than 200 unique users. Unfortunately none of them have provided any additional information. Sou ...
[CrashReport] UE4Editor_CoreUObject!FLinkerPlaceholderObjectImpl::FindRawPlaceholderContainer() [linkerplaceholderbase.cpp:161]
UE - Gameplay - Blueprint - Sep 27, 2017This is currently among the top 10 crashes coming out of the 4.17.2 hotfix, affecting a few unique users, and this specific callstack does not appear to have occurred in 4.17.1. This may be a regres ...
Crash after network disconnection/pulling network cable
UE - Networking - Jul 11, 2019A very unfortunate bug shipped in 4.22 that causes a crash in many cases when a client is disconnected from the network, such as when unplugging the network cable. This will be a cert failure on con ...
Some Twinmotion library assets do not render in Path Tracer in files with a large number of assets
TM - Rendering - Apr 17, 2025Reported in SF [Link Removed] In scenes containing large numbers of certain Twinmotion assets, when activating Path Tracer, some of the assets will not render. The assets will render normally in St ...
Landscape Change Component Size Tool removes foliage from landscape
UE - World Creation - Worldbuilding Tools - Foliage - Dec 12, 2017Foliage painted onto a landscape will disappear when Sections per Component is changed from 1x1 to 2x2. Affects 4.17.2 CL 3658906, 4.18.2 CL 3794801, 4.19 Main Possible Workaround is to set the Re ...
TVOS - Packaging CPP project fails when "Support Bitcode in Shipping" enabled
UE - Platform - Mobile - Dec 13, 2018Unable to package a CPP project with Bitcode enabled Confirmed in MAIN 4.22 @ CL 4655014 with error [404/405] sh /Users/compile/UE4/Builds/RDU-WD-11740/D/Projects/AJ_421CPP_4.22/Binaries/TVOS/ ...
Printing a string or character to the device output log does not display the string/character
UE - Platform - Mobile - Aug 30, 2019If you point to a character or text data type and log it into the Device output log, the variable will not appear in the output. However, any other data type will appear. ( float, int, etc.). Found ...
Packaging Error When Setting Recast Nav Mesh Runtime Generation
UE - AI - Jan 25, 2016Setting the Runtime Generation on the Recast Nav Mesh to a different preset than what is set in the Project Settings causes an error to appear upon trying to package the project, and causes the pack ...
Download Image BP node no longer works with links to local files.
UE - Online - Mar 5, 2020The Download Image BP node no longer works with links to local files with links such as "file:///C:/image.jpg" . This used to work, and confirmed working in 4.22, but is no longer the case. https:/ ...
Setting KeepState as default in LevelSequences makes Sequencer blend animations not as expected
UE - Anim - Sequencer - Nov 27, 2018Setting "Keep State" for an animation in sequencer makes the sequence behave differently in Sequencer and in Play Mode. The animations appear to be blending together instead of having normal transit ...