Unreal Engine Issues

Intermittent Crash using Rewind Debugger in Game Animation Sample

Licensee is reporting an intermittent crash when using the rewind debugger in the Game Anim Sample. ...

Instance Synced properties in Blackboard cause a crash

Using an Instance synced property in a Blackboard causes a crash when exiting PIE. This is a regression from 4.24.3 (CL-11590370). This was reported and tested in 4.25 (CL-13144385). This was teste ...

Crash on Build All Levels

Crash on Build All Levels after a HLOD warning. EXCEPTION_ACCESS_VIOLATION reading address 0x00000000000000f0 ...

Editor crashes if Sequencer has keyframes for a variable that has changed

The Editor crashes if loaded sequence has keyframes for an actor variable that has been changed, instead of soft erroring out. This was reported and tested on 4.20.3 (CL-4369336). It was reproduced ...

Ensure and Assertion thrown while attempting to change Float value on a Sky Light using the Set Editor Property node

This is a regression. Assertion thrown while attempting to change a Float value on a Sky Light component using the Set Editor Property node. Different property values can trigger this assertion bes ...

Virtual Memory Limit Listed in Logs

Logs show virtual memory limit for Windows 64 bit: 8388608.00. This is erroneous information that can be removed or replaced with more immediately useful information. ...

Interpolators of Niagara Dynamic Parameters Need "nointerpolation".

In Niagara's "CalculateParticleRadius", StaticSwitch Input is connected

This may not compile properly. Should be fixed. ...

Debug visualizations like 'r.VisualizeOccludedPrimitives 1' don't work in PIE, only in editor

"Hiding Other Developer Assets" does not work when "Show All Folder" is enabled

In the implementation of FFrontendFilter_ShowOtherDevelopers, the developer folder is determined by whether the asset path starts with /Game/Developers/. However, when "Show All Folder" is enabled, ...