Unreal Engine Issues
Unreal Engine Issues
Navigation mesh is generated ignoring collision for ISM added by construction script
UE - AI - Navigation - Apr 15, 2025When opening a map with ISM in place, NavOctree is not updated because the ISM bounds are assumed invalid and the geometry is not taken into account in the navmesh build. The following log output i ...
HTTP GET requests are much slower than a Python script by a factor of 15-20x
UE - Networking - Jul 25, 2016Based on user report, a HTTP Get request from UE4 is 15-20x slower than if using a Python Get request to get the same file. ...
Trying to diff previous versions of Blueprints using the Git plugin currently fails.
UE - Gameplay - Blueprint Editor - Aug 11, 2016Diffing a Blueprint does not currently work when looking at previous commits. The diff appears to be looking at pointer files instead of the actual Blueprint files themselves. When using the Git LF ...
LLDB 2-byte char data formatter script fails in Android Studio
UE - Platform - Mobile - Oct 3, 2018Android Studio does not properly parse the UE4DataFormatters_2ByteChars.py distributed in 4.20. ...
APEX Plugin - Destructible Mesh creation no longer creates/assigns Mesh Material
UE - Simulation - Physics - Destruction - Dec 19, 2018Destructible mesh material creation no longer creates/assigns DM array element with material from mesh. Workaround: Assign material manually after creating Destructible mesh Confirmed in MAIN @ CL ...
Send "Enter Key" is not working with press and release key in Web Browser plugin
Tools - Mar 3, 2020When trying to send the Enter Key to Web Browser using the Press and Release function, it does not work. This function works with any other key that you try to send. A repro project is attached tha ...
Mac - Xcode fails to build C++ project with a Shell Script Invocation Error
UE - Platform - Apple - Oct 5, 2020This does not occur in 4.25.4 Binary and is a regression. ...
Foliage 'BlockAll' instanced static meshes do not affect NavMesh
UE - AI - Navigation - Feb 27, 2024When placing static mesh foliage and setting the foliage mesh's Collision Preset to Block All, the placed meshes do not consistently block parts of the nav mesh. Expected: Placed meshes (for examp ...
Crash on PIE exit after dynamically enabling and disabling tick functions through the Level Script blueprint.
UE - Gameplay - Mar 23, 2018User reports hitting an assertion due to invalid FTickTaskManager state when game is attempting to unregister a tick function that was previously disabled dynamically. Failed assertion is in FTickT ...