Migrating a project from UE5.2 to UE5.3.1, there was a difference in the navmesh generated on HISM

UE - AI - Navigation - Oct 24, 2023

HISM is generated by ConstructionScript Actor is placed on the level and navmesh is generated on top of HISM. In UE5.2, the navmesh was generated without splitting on the HISM. In UE5.3, a break occ ...

Objects with physics enabled do not show up in 4.7 preview 2 (when upgraded form 4.6)

UE - Gameplay - Jan 12, 2015

After upgrading from 4.6 to 4.7 preview 2 objects that are set to simulate physics will not show up if the user uses the mobile preview. ...

Frame specific functionality unusable in Composite/Montage editors post 5.2 changes

UE - Anim - Runtime - Jul 20, 2023

Part of the changes for 5.2 required UAnimCompositeBase::GetSamplingFrameRate to be changed to return a very high framerate.  This has the unintended consequence of effectively making the functional ...

Spin Box delta does not appear to affect how the spin box increments through its values when clicking and dragging with the mouse

UE - Editor - UI Systems - May 12, 2017

Spin Box delta does not appear to affect how the spin box increments through its values when clicking and dragging with the mouse. The spin box appears to increment/decrement by more or less dependi ...

Changing preview mesh appears to affect initial transforms of all control rigs in level viewport

UE - Anim - Rigging - Control Rig - Apr 16, 2024

It seems that switching the preview mesh in the control rig editor is affecting the initial transforms in the hiearchies of related control rigs in the level viewport.  This seems to be due to the c ...

Preview weight on Landscape Layer Sample affects Grass Output on landscape disregarding layer info

UE - LD & Modeling - Terrain - Landscape - May 10, 2022

Preview weight on Landscape Layer Sample affects Grass Output on landscape disregarding layer info Repro Rate: 3/3 Tested this in //UE4/Release-4.27 @ CL#18319896 and the issue did NOT occur there ...

Display 1.2 bouncing ball has a typo in the Math Hall of ContentExamples

Docs - Samples - Sep 19, 2016

Just a typo that needs to be fixed. ...

Cooked materials and material instances size have doubled when upgrading from 5.1.0 to 5.2.0

UE - Rendering Architecture - Materials - Jul 18, 2023

UDN: [Link Removed] A UDN customer has observed that their cooked materials have doubled in asset size going from 5.1 to 5.2. We need to investigate this is only a local issue on their side and no ...

Distances do not match on display 2.6 of the Math_Hall in ContentExamples

Docs - Samples - Sep 22, 2016

This could be a rounding error but if they are both representing the same distance they should match. Maybe truncating a few decimal places and rounding could work. ...