Unreal Engine Issues
Unreal Engine Issues
Nav Modifier Volume Not Affecting Nav Mesh Until it is Moved
UE - AI - Oct 21, 2016Nav Modifier volumes are not affected the nav mesh until they are moved from their initial placement position. Found in 4.13.1. Reproduced in 4.12.5 and 4.15 Main CL 3163223 This is similar to [Li ...
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. ...
Destructible meshes always affect navigation regardless of collision
UE - AI - Jan 27, 2016Turning off a destructible mesh's collision will still affect navigation around the destructible mesh Note: This issue is related to [Link Removed]. The workaround for that issue does not apply he ...
Drag coefficient on vehicle blueprints affects forward and reverse differently
UE - Simulation - Physics - Mar 31, 2016Drag coefficient on vehicle blueprints affects forward and reverse differently. If in reverse, it seems to be additive or multiplicative to the vehicle's movement as opposed to providing any resista ...
The visibility state of on-screen stat messages is not restored correctly after entering and leaving PIE. This also affects other important on-screen messages like map warnings and debug messages.
UE - Editor - UI Systems - Nov 28, 2024Currently, the ShowStats viewport option is automatically enabled when entering PIE and automatically disabled when exiting PIE. This forced disabling happens even if the option was enabled prior to ...
Can Ever Affect Navigation Option Being Reset Upon PIE
UE - AI - Mar 29, 2016Upon PIE, the Can Ever Affect Navigation option is being reset on the capsule component of an empty character. Dragging the empty character into the level, setting the option to true, and then playi ...
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 ...
Gamepad input affects multiple game instances at once, due to not needing focus.
UE - Editor - UI Systems - Slate - Mar 5, 2019Since Gamepad input works without needing focus (which was added in 4.9 with [Link Removed]), a Gamepad's input will also affect all instances running on the same computer. Regression?: No This occ ...
Visibility of World Outliner doesn't affect skylight
UE - Graphics Features - Nov 27, 2018Visibility of World Outliner doesn't affect skylight. But it affects other kinds of lights like Point Light, Directional Light. I found that USkyLightComponent::CreateRenderState_Concurrent() doesn ...
NavMesh does not update properly when "Can Ever Affect Navigation" is toggled (For Static Meshes)
UE - AI - Sep 15, 2015This issue is related to [Link Removed] (which was fixed). However if the user creates a new actor and then adds a static mesh they can end up with permanent holes in their nav mesh. If the user tog ...