Unreal Engine Issues
Unreal Engine Issues
Child class references are not shown after restarting the editor
UE - Gameplay - Blueprint - Oct 27, 2017Child class references are not shown after restarting the editor. However, the other reference will show up if the child blueprint is currently open. ...
Vertex Interpolate Node Doesn't Work with Lightmass
UE - Graphics Features - Lumen - Aug 8, 2018The vertex interpolate node doesn't work with lightmass. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, and 4.21 CL# 4258917 ...
Cascade Alpha Over Life Module Doesn't Interpolate Vaules That Differ in .05 or Less With "Can Be Baked" Enabled
UE - Niagara - Aug 16, 2018Alpha over life module doesn't interpolate vaules that differ in .05 or less with "Can Be Baked" enabled. Found in 4.19 CL# 4033788, 4.20 CL# 4233996, 4.21 CL# 4291146 ...
Updating a material layer may not update materials that are using that material layer instance
UE - Rendering Architecture - Materials - Jan 7, 2022Material layer instances do not generate a valid UMaterialFunctionInterface::StateId. For this reason, materials and material instances that use material layer instances will not recompile their sh ...
FXAA doesn't work if you replace the tonemapper with a material postprocess
UE - Graphics Features - Sep 1, 2016As reported on UDN. If using a custom postprocess which replaces the tonemapper, FXAA doesn't work. ...
Sequencer UpdateTimeCursorPosition can set TimeCursorPosition beyond the end of the track when stopping
UE - Anim - Sequencer - Oct 11, 2016After calling Stop() in UpdateTimeCursorPosition (LevelSequencePlayer.cpp:392), we continue on to set TimeCursorPosition to NewPosition. At this point, NewPosition is beyond the end of the track. A ...
Evaluate ClampedPow material function
UE - Graphics Features - Mar 16, 2017ClampedPow seems to have been added as a way to tackle common compile warnings and edge cases (particularly NaNs), but the code shouldn't be calling both an abs() then a max(). This causes negative ...
Missing Service Node warning when opening project
UE - AI - Sep 24, 2018Services in the Behavior Tree sometimes don't work when the project is first loaded. The Behavior Tree will print a "missing service node" warning and the BT will remain inactive. This was reported ...
Contact Offset no longer appears to have an effect
UE - Simulation - Physics - Jan 15, 2019When modifying the contact offset in a project it appears to have no effect. The setting that worked in a previous engine version (4.19) now collide in the same way as the default settings. ...