Unreal Engine Issues
Unreal Engine Issues
Bloated instruction counts in the material editor causing long compiles
UE - Graphics Features - Apr 17, 2019artists are dealing with greatly increased iteration times due to long shader compiles when working in the material editor. This has regressed over time as we add more features to the point were wor ...
The order of Actors assigned to a Physics Constraint affects the simulation
UE - Simulation - Physics - Jun 8, 2018The order in which actors are listed on a physics constraint affects the physics simulation. This should not make any difference in how the physics are simulated. Regression?: No This occurred in ...
Reducing Resolution Scale affects Selection Accuracy in Viewport
UE - Graphics Features - Nov 17, 2015When reducing the Resolution Scale the selection accuracy is reduced greatly, and makes it difficult to click and move objects in the viewport when PIE or Simulating. ...
Light Propagation Volumes Not Affected by Emissive Area Light
UE - Graphics Features - Aug 1, 2018The light propagation volume is not affected by a material with emissive area light enabled. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4246589 ...
MRQ - MovieGraphEditorExample.py on_executor_finished_delegate not called in 5.6
UE - Anim - Sequencer - MRQ - Jun 13, 2025From UDN: We are launching jobs using a modified version of MovieGraphEditorExample.py. In 5.5 everything works fine, but in 5.6 the on_executor_finished_delegate is never getting called when all th ...
Character Movement Mode in Water Volume is affecting all clients
UE - Gameplay - Player Movement - Dec 16, 2019Strange behavior concerning Character Movement Network Replication and a Water Physics Volume. Upon entering water volume, Character Movement mode is set to swimming, however if more than one clien ...
Copy/Paste a data asset fields cause the fields to affect each other
Tools - Jul 7, 2016When an element of a data asset is copied into another field, the two fields become "linked" and further edits to one field begin to affect the other. ...
Align Brush Vertices not adjusting BSP brushes in 4.7 Preview 4
UE - LD & Modeling - Modeling Tools - BSP - Jan 22, 2015Align brush vertices does not function in 4.7 preview 4. ...
Using Start Players as Spectators checkbox does not affect Player0
UE - Gameplay - May 20, 2015When setting up a custom game mode blueprint, if the "Start Players as Spectators" checkbox is checked the first player loaded in PIE will not be in spectator mode. ...
Sound Mix Modifiers do not properly affect Sound Class
UE - Audio - Mar 30, 2015Sound mixers do not properly override variables within a sound class. This prevents users from being able to modify variables such as volume or pitch quickly and efficiently by using the push/pop st ...