Unreal Engine Issues
Unreal Engine Issues
Niagara system loses source emitters when moving Engine from 4.22 or earlier to 4.23 or later.
UE - Niagara - Nov 29, 2019The following code causes this behavior.// NiagaraSystem.cpp for (FNiagaraEmitterHandle& EmitterHandle : EmitterHandles) { EmitterHandle.ConditionalPostLoad(NiagaraVer); if (!EmitterHandl ...
Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph
UE - Rendering Architecture - Materials - Jun 6, 2022This is a regression testing in //UE4/Release-5.0 CL#18319896 Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph. ...
bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping
UE - Gameplay - Input - Jun 16, 2022This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well. I'll update the repro s ...
[MetaSounds] - Trigger on Threshold node Crashes editor on play when using literal value for threshold
UE - Audio - MetaSounds - Mar 15, 2022Editor crashes when Trigger on Threshold node is hooked up in a Metasound graph and played using a threshold value defined on the node. If you use an Input node for the Threshold value, the crash do ...
Crash while unloading a streaming level while spawned decals exist in the unloaded level
UE - Graphics Features - Aug 18, 2017When unloading a level containing a decal that is using a dynamic material instance the editor will crash. ...
Crash In Material Editor When Previewing A Node
UE - Graphics Features - Nov 3, 2016When previewing a blank texture sampler in the material editor while the HLSL window is open, you can assign a texture to the texture sampler and crash the engine. ...
[CrashReport] UE4Editor_Kismet!SBlueprintEditorSelectedDebugObjectWidget::GenerateDebugObjectNames() [sblueprinteditorselecteddebugobjectwidget.cpp:454]
UE - Gameplay - Blueprint - Dec 9, 2016This Jira was created from CrashReports submitted by the public due to the high number of occurrences. Error message: Access violation - code c0000005 (first/second chance not available) Source C ...
Editor crash when adding element to Instance array of custom InstanceStaticMeshComponent
UE - Gameplay - Blueprint - Sep 14, 2017Adding an instance static mesh component to a class causes the editor to crash when an instance is added to a blueprint of the class. Regression: Yes - this behavior does not occur on 4.16.3 (CL 35 ...
FInternetAddrBSDIPv6::SetIp doesn't handle all valid IPv6 formats
UE - Networking - Sep 29, 2016Currently FInternetAddrBSDIPv6::SetIp(const CHAR* InAddr, bool& bIsValid) does not handle all valid formats of IPv6 addresses. Need to rework the function to be more robust, and properly handle all ...
API version is incorrect for licensee versions
UE - Foundation - Core - Jun 26, 2015Reported by a licensee: We currently force the MODULE_API_VERSION to be the same as our release of 4.8.0, even if licensees are using a custom version scheme. This can cause content that will refus ...