Unreal Engine Issues
Unreal Engine Issues
StreamableManager does not apply CoreRedirects to loaded paths
UE - Framework - Jun 12, 2025When loading soft object paths directly, it applies any important CoreRedirects by calling the function FixupCoreRedirects if the initial load attempt fails. In the repro steps, this will apply this ...
Switching LOD while using Evaluation Mode = Freeze in custom transit graph fails
UE - Anim - Runtime - Sep 14, 2021If a user setups up a custom transition graph that caches one of the input poses by setting the Evaluator Mode property to Freeze then the node fails to deal with the situation where the LOD or mesh ...
GAS: RemoveReplicatedLooseGameplayTag on unadded tag causes it to be replicated
UE - Gameplay - Gameplay Ability System - Nov 17, 2022A UDN user found that calling AbilitySystemComponent->RemoveReplicatedLooseGameplayTag(TagToRemove); while the gameplay tag was not in the TagMap, will create an entry for it with count 0, see ...
Search in Blueprint can encounter a deadlock condition when the window is closed before the search finishes and an FText lookup is pending
UE - Gameplay - Blueprint Editor - Jun 19, 2024When a running search in all blueprints is closed, it may prevent an AsyncTask used to return the look up FText's from StringTables from running on the game thread, leading to a deadlock. When the ...
TArrayView64 RangeCheck prints the incorrect error messages for values over 32-bit length
UE - CoreTech - Apr 29, 2022TArrayView64 RangeCheck prints the incorrect error messages for values over 32 bit. Repro Rate: 4/4 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did occur there, it is not a regre ...
Crash occurs when blueprint breakpoint is placed after a Draw Debug String node
UE - Gameplay - Blueprint - Aug 22, 2023This is not a regression. Tested in //UE5/Release-5.2 CL 26001984 The editor crashes when playing in editor on a level that has a break point placed on a ticking draw debug string node that is prec ...
Setting the root component in a code class constructor does not actually set that component as the root component of a Blueprint created from that class.
UE - Gameplay - Blueprint - Dec 16, 2014The root component of a Blueprint is determined by the order in which the components are defined in the constructor of a class (the component defined first becomes the root component). Trying to set ...
Slate memory stomp on engine shutdown caused by invalidation panel
UE - Editor - UI Systems - Slate - Feb 8, 2017A licensee reported a crash happening when the engine shuts down. We determined it only occurred when invalidation panels are used, likely caused by a call to ClearChildren on a canvas panel in an i ...
Function calls inside destructor are not called when expected.
UE - Gameplay - Blueprint - Jul 13, 2015Functions called in the destructor are not being called properly. Setting a call to AddOnScreenDebugMessage is displayed at the start of PIE rather than when the actor's destroy is called. ...
StartWithTickEnabled is ignored for actor components that auto activate
UE - Gameplay - Components - Jul 13, 2017Any change to the setting for the variable bStartWithTickEnabled in a skeletal mesh component is not registered. The component will tick even when the variable is set to false. Setting bStartWithT ...