Unable To Add More Than One Element To Default Values For Maps In Blueprint

UE - Gameplay - Blueprint - Feb 13, 2017

When adding new elements to a Map in blueprints it will return the error "Cannot add a new key to the map while a key with the default value exists". This is because it currently won't increment the ...

Pawn Blueprint cannot have variables default value set in Engine ini

UE - Gameplay - Blueprint - Jun 1, 2017

When using a pawn blueprint, you cannot modify the value of a variable in the config files. This issue does not affect other kinds of blueprints, as this issue does not affect actor blueprints. Re ...

[CrashReport] UE4Editor_UdpMessaging!FUdpMessageProcessor::HandleSerializedMessageStateChanged() [udpmessageprocessor.cpp:548]

UE - Virtual Production - Nov 21, 2017

This is a common and longstanding crash that has occurred since at least 4.11. User DescriptionsI was just sitting around and it autosaved no source context available ...

Blueprint variables get reset if not made Public

UE - Gameplay - Sep 5, 2018

When a blueprint variable is not set to Instance Editable, its value gets reset at runtime. This seems to occur because the variable OriginalCannonTransform seems to get reset/nullified after being ...

Sound Cue with Branch or Switch node has incorrect duration when played in a level sequence

UE - Audio - Oct 19, 2020

Sound cues with a branch or switch node will show in the sequence with the longest duration of any waves within the cue, despite which one will be played. During playback the section length will dif ...

Level Sequence option "Allow Level Edits Only" causes Frame Rate drop when used

UE - Anim - Sequencer - Aug 15, 2017

When using the new option "Allow Level Edits Only" there is a drastic frame rate drop while playing the sequencer. This frame rate drops when only using this option. Versions Tested: 4.16.3 - CL: 3 ...

Enable high quality Gaussian DOF cause black screen on Android(S6)

UE - Platform - Mobile - Nov 23, 2017

This is only happen on Android, no problem on IOS ...

HISM(Hierarchical instance static mesh) has lightmap problem after building lighting

UE - Graphics Features - Aug 5, 2018

HISM has lightmap issues after build lighting ...