Unreal Engine Issues
Unreal Engine Issues
Project breaks if Online Subsystem plugin is disabled
UE - Foundation - Core - Apr 25, 2017Disabling Online Subsystem prevents the project from loading. On Windows, this produces an error shown in attached screenshot. On Linux, this causes a crash with the attached callstack on project ...
Crash Occurs When Attempting to Resume Execution After Hitting a Breakpoint in a BT Task
UE - Gameplay - Oct 6, 2017When a breakpoint is hit in a BT Task, if you attempt to use CTRL+P to search for and open the BT the task is being run in, try to resume execution, and then return to the original BT Task Blueprint ...
Linux: Assertion at splash screen when trying to open UE4Editor
UE - Platform - Linux - Mar 21, 2017I ran into this while looking to verify [Link Removed] at CL 3355923. I logged the issue I was verifying the fix for last night and have not updated anything locally, so the "OpenGL 4.3 not supporte ...
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 ...
A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast it immediately disappears by hitting the world limits
UE - Simulation - Core - Jan 20, 2025A Skeletal Mesh simulating physics that hits a Geometry Collection Actor with OneWayInteraction true, OneWayInteractionLevel 1, and is using Damage Propagation (default) will be accelerated so fast ...
Crash when force deleting Dataflow Graph
UE - Editor - Workflow Systems - Jul 31, 2023When force deleting a dataflow graph with the dataflow graph editor open it will crash the engine. This issue is occurring in Binary //UE5/Release-5.3 @ CL 26560699 This issue is occurring in Binar ...
Slow-rendering thumbnails can be queued up for real-time updates
UE - Editor - Content Pipeline - Content Browser - Sep 22, 2016A licensee is seeing performance drops while using the editor due to a custom thumbnail renderer taking a while to generate thumbnails while Real-Time Thumbnail rendering is enabled, and has request ...
Debug lines can be obscured by post processing effects
UE - Graphics Features - Sep 14, 2015Debug lines (Results of DrawDebugLine()) can be obscured by post processing effects such as a strong glare. Debug lines should be always visible for debugging purposes. ...
SunTemple is washed out in one color on some Android devices.
UE - Platform - Mobile - Jan 16, 2017This was discovered during the 4.15 mobile compat. ...
Viewport has graphical glitch while editing but not in PIE
Tools - Feb 6, 2015User has a project that the viewport has gotten corrupted. The icons are now no longer camera facing and are facing in the positive y axis. The sun disc and sky are blurred. When PIE everything rend ...