Unreal Engine Issues
Unreal Engine Issues
Instance Static Meshes spawned at Runtime do not have collision
UE - Gameplay - May 8, 2015Spawning an Instance Static Mesh at runtime does not have collision. This issue appears only in 4.8 Preview 1 and the 4.8 Release branch (tested on CL-2540862), but is fixed in Main Branch as of Ma ...
AI Move To Location zeros velocity each call, causing the AI Pawn to freeze if told to move again before reaching destination
UE - AI - Sep 12, 2016AI Move To Location causes AI to lose velocity each time it is called, resulting in a freeze in movement on each call. Regression: Yes Worked: 4.12.5 (CL 3039270) Broken: 4.13.0 (CL 3106830) Funct ...
-binnedmalloc is broken on Linux
UE - Platform - Linux - Oct 31, 2016In 4.13 launching a linux game with -binnedmalloc will use the binned allocator. In 4.14 the command line was accidentally changed to -binnedmalloc1 while making other changes. It is still -binnedm ...
Content Examples: Blueprints_Overview Stand 1.7 Spark particle system does not fire from coin
Docs - Samples - Jan 19, 2017During runtime, the red coin in Stand 1.7 on the Blueprints_Overview map of Content Examples should emit a large spark particle system 5 times. While investigating, I tried disabling "Use Fixed Rel ...
Map load stalls in texture streaming code
UE - Graphics Features - Jun 13, 2017A change was made to AActor.GetComponents which appends the results instead of resetting the output array. This seems to only impact 2 places in the code, and has a big side effect in the texture st ...
Crash from pausing an UMG animation using the event track
UE - Anim - Sequencer - Jun 27, 2017When pausing a widget animation by using an event using the event track to pause the animation the editor crashes when you play the animation via PIE or standalone. Tested in 4.15.3 - CL 3450819 4. ...
Unable to use wrap with or replace with for widget components that are children of an expandable area component
UE - Editor - UI Systems - Sep 29, 2017With the expandable area widget component, you are unable to use the wrap with or replace with for widget components. This issue does not appear to be a regression. Versions Tested: Issue occurs in ...
Reroute Node Breaks Link in Material Editor When Used with Material Function
UE - Rendering Architecture - Materials - Nov 30, 2017Adding a reroute node in the material editor between a texture object and a material function breaks the link and the texture object is no longer applied. Adding a reroute node into a spline that d ...
Incorrect foliage color in editor preview when using PerInstanceRandom node
Tools - Mar 19, 2018When using PerInstanceRandom in the foliage material, the foliage in the editor preview has incorrect "broken" color. In the game preview, color shows up correctly. Reproduced in 4.19.0 CL 3944462 ...
meshes from 3ds Max which have custom pivots do not reappear in the level after undoing a delete action
UE - Editor - Content Pipeline - Datasmith - Exporters - Mar 29, 2018There is an issue occurring where meshes from 3ds Max which have custom pivots from a datasmith import do not reappear in the level after deleting them and then undoing the delete action. The mesh d ...