Unreal Engine Issues
Unreal Engine Issues
20 FPS performance drop between 4.7.6 and 4.8 on devices rendering Metal only
UE - Platform - Mobile - Jun 22, 2015User reported a considerable performance drop on iOS between versions 4.7.6 and 4.8. I was able to reproduce this perf drop using the steps he provided. ...
Point Lights Y-Axis Rotation Changed from 4.18 to 4.19
UE - Graphics Features - Jun 6, 2018Possibly related to [Link Removed]. This affects Static, Stationary, and Movable point lights when upgrading a project from 4.18 to 4.19.2 or Main (tested in CL 4101872). If you click the "Reset to ...
VR preview does not work when the project was converted from 4.7 to 4.8
UE - Platform - XR - Jun 15, 2015If the user upgrade a project form 4.7 to 4.8 the VR preview will only show up as a regular stand alone window. ...
Attached Project Crashes While Opening After Conversion From 4.10 to 4.11
UE - Foundation - Core - May 3, 2016The attached project is now crashing after being upgraded from 4.10.4 to 4.11.2. This crash also occurs when attempting to open a copy of the project in 4.12 Preview 1. After further investigation ...
Using Fixed Frame Rate Increases the Speed of Auto Save
UE - Foundation - Core - Oct 26, 2015Using a lower fixed frame rate (i.e. 20fps) causes the auto save timer (when set to the default of 10) to count down in 3 seconds. Found in 4.10 Preview 2 CL 2733139. Reproduced in 4.9.2 binary an ...
Updating to 4.13 from 4.12 Causes Particle System Orientation to Break When Cooked
UE - Graphics Features - Sep 16, 2016When updating a particle system with the mesh data type to 4.13 its orientation will change after being cooked. This issue will not appear with PIE, or Stand alone you must Launch from editor. A 4.1 ...
Strange crash occurring from project When upgrading from 4.16 to 4.17
UE - Gameplay - Blueprint Compiler - Aug 2, 2017There are a string of crashes that are occurring with UMG as the cause of the crash. This occurs when the project is upgraded from 4.16 to 4.17. With the project provided making any change to the B ...
Instance Static Mesh instance doubles when upgrading from 4.18 to 4.19 or higher
UE - World Creation - Worldbuilding Tools - Foliage - Sep 4, 2018Instance Static Mesh instance doubles when upgrading from 4.18 to 4.19 or higher. According to Licensee, manual check is difficult. ...
4.6.1 to 4.7 conversion crash "Assertion failed: Pin != nullptr ...K2Node_DynamicCast.cpp]"
UE - Gameplay - Blueprint - Feb 25, 2015Several Users are experiencing crashes on importing a 4.6.1 project into 4.7.0 (Release) Here are the crash reporter links: [Link Removed] [Link Removed] [Link Removed] [Link Removed] [Link Removed ...
Overlap trigger on Event Begin Play doesn't work after converting project from 4.7.6 to 4.8 P2
UE - Gameplay - May 18, 2015Overlap trigger on Event Begin Play doesn't work after converting project from 4.7.6 to 4.8 P2. The user thought this was related to using Custom collision object types but it is reproducible with ...