Unreal Engine Issues
Unreal Engine Issues
New VR-Basic level triggers Metal validation layer assertion
UE - Platform - Apple - Mar 16, 2020This was discovered externally and reported on UDN here: https://udn.unrealengine.com/questions/563268/mac-editor-crash-when-disable-ambient-occlusion.html ...
VerboseCookerWarning warnings: Saving object into cooked package %s which was created at cook time, Object Name UniqueObjectNameForCooking_0, Full Path %s, Outer class %s
UE - Foundation - Data Pipeline - Cooker - Jun 19, 2023Creating objects at cook time that are exported into the cooked package is a possible cause of indeterminism, and therefore we have banned it in engine classes and will fire a warning about it. Cur ...
Crash upon using marquee selection in Anim Graph while debugging
UE - Gameplay - Blueprint - Apr 20, 2016A user reported a crash that occurs only in Debug Editor, related to the Anim Graph of an Animation Blueprint. The issue involves marquee selecting multiple nodes inside of a State Machine transitio ...
.wav files with max concurrency count data outside proper range will crash editor when played
UE - Audio - Apr 12, 2016Editor crashes if a set of sound files provided by a user is played. This occurs in any project that the asset is migrated to. Frequency: 5/5 NOTE If the asset is exported outside of the editor ...
[CrashReport] FText::IsEmpty | UTextProperty::Identical_Implementation
UE - Gameplay - Blueprint - Aug 15, 2017This is a trending crash coming out of the 4.17 release. Users have not provided any descriptions of their actions when the crash occurred. Source Context 257 FText::FText( FString&& InSo ...
10 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players
UE - Networking - May 19, 201510 or more Static Meshes set to Simulate Physics and Replicates Movement will crash the editor with PIE set to 2 or more players. Less than 10 don't cause a crash. The user reporting this got a mor ...
Changing Area Light Settings In Blueprint Causes Crash
OLD - Enterprise - Aug 27, 2018Changing area light settings in blueprint will Cause a crash. Found in 4.20 CL# 4302132 and 4.21 CL# 4307852 Unable to test in 4.19 due to provided project being in 4.20 ...
[CrashReport] Mac crash - FCocoaRunLoopSource::Process
UE - Platform - Apple - Sep 14, 2017This is a somewhat common Mac crash that has occurred since at least 4.14 and into 4.17. Users have not provided any descriptions of their actions when the crash occurred. The callstack contains l ...
Projects crash when launching onto Firefox 64-bit
UE - Platform - Mobile - May 8, 2017QAGame crashes when it launched onto Firefox. The following exception occurs with the error message:*Expression (0) failed in D:\UE4_Dev-Rendering\Engine\Source\Runtime\Core\Private\Async\TaskGraph ...
Crash promoting a float pin from a split vector in Anim Blueprint
OLD - Anim - Jun 7, 2017REGRESSION Yes, does not occur in 4.16. Crash occurs when the user splits a vector pin on an anim node and then tries to promote one of the float nodes to variable. I could not reproduce this issu ...