Unreal Engine Issues
Unreal Engine Issues
Enum Variable Cannot Accept Code-Based Enums
UE - Gameplay - Blueprint - Feb 24, 2016Trying to create a variable that accepts multiple types of enums, and code-based enums are not showing up in the list. Creating a variable that stores a UEnum class does not display enums created i ...
Undoing pasting a component will crash ([CrashReport] UE4Editor_CoreUObject!FWeakObjectPtr::IsValid() [weakobjectptr.cpp:48])
UE - Gameplay - Components - Jul 20, 2017This is a common crash affecting users in 4.16. The callstack is similar to [Link Removed], which was fixed in 4.13. User DescriptionsAccidentally duplicated a blueprint with multiple static mesh ...
Save Data Does Not Delete After Actors in Sequencer are Deleted and File Size Continues to Grow
UE - Anim - Sequencer - Oct 9, 2017Link that the user included with their Answer Hub ticket: https://answers.unrealengine.com/questions/713209/levels-uneditable-editor-stuck-with-updating-asset.html The file size is not maintaining ...
[CrashReport] UE4Editor_Kismet!FQuatRotationMatrix::FQuatRotationMatrix() [quatrotationtranslationmatrix.h:43]
UE - Gameplay - Aug 31, 2018User comment in crash group:Please Contact me to help fix this. I don't know what else to do. 41 FQuatRotationMatrix(const FQuat& Q) 42 ***** : FQuatRotationTranslationMatrix(Q, FVect ...
Push based fast array with net.PushModelSkipUndirtiedFastArrays not replicating across multiple PIE sessions
UE - Networking - Sep 19, 2022The conditions for this bug are fairly specific. The actor must be statically placed, with its only replicated property being the fast array, and net.PushModelSkipUndirtiedFastArrays must be enabled ...
Safezones on Android not set properly when orientation changes
UE - Platform - Mobile - Nov 5, 2024Looks like the resize that does the safe zone update is done before the orientation is updated. I suggested swapping the order to licensee in the UDN ticket and it worked for him. This should be t ...
Bundled compute PSO compilation stalling tender thread
UE - Rendering Architecture - RHI - Feb 13, 2025EA Motive has pointed out a potential bug they found related task graph synchronization and when compiling compute PSOs: [Link Removed]. From the screenshot they sent over, it seems that a task grap ...
bIgnoreAllPressedKeysUntilReleaseOnRebuild in Enhanced Input behaves unexpectedly during pawn possession
UE - Gameplay - Input - Jun 11, 2025This is a speculative bug report from the user. The fix for this is to re-do the work of 31224705 but in a better way. The "bShouldBeIgnored" flag is being overriden by the previous mapping's va ...
The Toggle Comment Bubble button for Reroute nodes does not revert the comment bubble to constant visibility
UE - Gameplay - Blueprint - Nov 21, 2015The Toggle Comment Bubble button for Reroute nodes does not revert the comment bubble to constant visibility if the bubble is set to only appear when the node is hovered over. This does not occur w ...
Instanced subobjects are not always instantiated as expected.
UE - Gameplay - Blueprint - Aug 13, 2015Instantiation of subobjects does not behave as expected when using the DefaultToInstanced UCLASS specifier. The licensee that reported the issue provided a sample project with some ensures added whe ...