Collision for hidden mesh is not displayed in PIE using Showflag.collisionpawn

OLD - Anim - Oct 23, 2017

When playing in viewport, the user is not able to see the collision of a mesh marks as hidden in game if they run the "Showflag.collisionpawn 1" console command. ...

Crash when modifying InstancedStaticMesh transform in Blueprint Editor

UE - World Creation - Worldbuilding Tools - Foliage - Oct 20, 2017

InstancedStaticMesh component element mismatch between in-level and BP editor can cause crash when modifying transform in BP editor. This can happen when a user modified transform in-level actor's I ...

Hot reload iteration time regression.

UE - Foundation - Core - Oct 19, 2017

Hot reload iteration times have been crippled ever since CL# 3332960, which was a fix for [Link Removed]. ...

Crash on checking event track key property after setting static mesh reference element

UE - Anim - Sequencer - Oct 19, 2017

Event track key with a structure containing staticmesh reference. Setting the staticmesh then reopening the property crashed the editor. ...

NaN is handled differently when clamped on Windows and Android/iOS

UE - Platform - Mobile - Oct 18, 2017

NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...

Crash caused by character referencing a reparented AnimBP

OLD - Anim - Oct 18, 2017

Placing a character that reference to a reparented AnimBP(created as a child of thirdperson, then reparented to AnimInstance) crashes editor after reopening the project. If you already had that charac ...

CreateWidget node keeps reference to created widget on output pin

UE - Gameplay - Blueprint - Oct 17, 2017

There was an issue in 4.16 (fixed in CL# 3437205) in which blueprint output pins would hold on to object references until the blueprint was destroyed. It appears that an additional fix may need to b ...

VisibleAnywhere specifier doesn't prevent components from being edited in property windows

UE - Gameplay - Blueprint - Oct 17, 2017

Using the VisibleAnywhere specifier in a UPROPERTY declaration does not prevent a Component's properties from being edited in property windows. This conflicts with the description of this specifier ...

Move To Location or Actor Not Working if Location is Outside of Navmesh

UE - AI - Oct 17, 2017

Move To Location or Actor will always fail if the target location is outside of the Navmesh, even if Use Pathfinding is disabled. Found in 4.18 P4 CL# 3685441. Reproduced in 4.17.2 CL# 3658906 & 4. ...

Crash upon adding an Interface to a Blueprint that has a function name that matches the name of a variable in the Blueprint.

UE - Gameplay - Blueprint Compiler - Oct 13, 2017

When you add an Interface to a Blueprint that contains a variable with the same name as one of the Interface's functions, the editor will crash upon compiling the blueprint. In 4.16, this only cause ...