Unreal Engine Issues
Unreal Engine Issues
Unable to Edit Default Struct Key of TMap
UE - Gameplay - Blueprint - Mar 15, 2017In a TMap where the key is a struct, it is not possible to edit the default value of the struct. Found in 4.15.0 CL# 3299760. Reproduced in 4.16 Main CL# 3345747 ...
RF_WasLoaded is set to False in PIE for instances of a Blueprint if the Blueprint is recompiled
UE - Gameplay - Blueprint - Apr 5, 2019The RF_WasLoaded flag is set to false for Blueprint instances in PIE if the Blueprint is edited and compiled. This is fixed by saving the level which is a simple workaround but this should be needed ...
Cannot change Collision Profile of BP component instances
UE - Simulation - Physics - Oct 24, 2019BP instances placed in level cannot have their components' collision profiles modified to anything other than default and custom. Note that this did not occur in 4.22 (after applying the separate ...
Niagara system loses source emitters when moving Engine from 4.22 or earlier to 4.23 or later.
UE - Niagara - Nov 29, 2019The following code causes this behavior.// NiagaraSystem.cpp for (FNiagaraEmitterHandle& EmitterHandle : EmitterHandles) { EmitterHandle.ConditionalPostLoad(NiagaraVer); if (!EmitterHandl ...
Problems in skeletal mesh merge
UE - Editor - Content Pipeline - Asset Build - May 10, 2021There are a few issues a licensee has found with the skeletal mesh merge operation. See the UDN for more details and the proposed fixes. Note, the issue with the cloth merge is already logged in a ...
Disabling Render in Main Pass on a Nanite mesh causes a crash
UE - Graphics Features - Jun 8, 2021When disabling Render in Main Pass on a Static mesh with nanite enabled a crash occurs This issue is occurring in //UE5/Release-5.0-EarlyAccess Binary CL 16433597 ...
[Submix][Content Browser] - Deleting an unsaved Submix asset (any type) causes them to reappear when creating a new asset
UE - Audio - Submixes - May 13, 2021Deleting unsaved Submix assets causes them to reappear the next time you create a new asset. Issue does not occur in 4.26, but does occur in 4.27 and 5.0. ...
Delay in updating coordinates in camera manager of sequencer
UE - Anim - Sequencer - Mar 18, 2022This problem was reproduced in 5.0 Preview 2. According to the licensee, this did not occur in 4.26. Not sure if this is related to the camera manager, but some objects are delayed at the end of s ...
Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph
UE - Rendering Architecture - Materials - Jun 6, 2022This is a regression testing in //UE4/Release-5.0 CL#18319896 Assertion thrown when selecting the Input Preview arrow within a collapsed node within the Material Graph. ...
bIgnoreAllPressedKeysUntilRelease only applies to keys in the previous mapping
UE - Gameplay - Input - Jun 16, 2022This is because the RebuildControlMappings function only checks this flag when you have a mapping that was already added, we should apply this for any new mappings as well. I'll update the repro s ...