Unreal Engine Issues
Unreal Engine Issues
TInstancedStruct used in native actor class loses reference to Instanced UObject after BP recompilation
UE - Framework - Blueprint Compiler - Jun 25, 2025When a TInstancedStruct contains a UObject marked with EditInlineNew and DefaultToInstanced, the reference is lost after compiling the Blueprint but only when the struct is part of a native Actor cl ...
UForceFeedbackEffect is only making slight vibration in iOS when value rises from 0 or effect is started.
UE - Platform - Mobile - Jun 11, 2019UForceFeedback is expected to give vibration just like in the graph of the asset. But only in iOS it is not. It is expected to give continuous vibration following the forcefeedback asset, but only ...
Network Prediction crash when smoothing service instance data is reallocated out from under FNetworkPredictionStateView
UE - Gameplay - Network Prediction - Apr 4, 2025Received a report from a licensee using Network Prediction Plugin and Mover. There is a strong likelihood of a crash occurring when using NPP's smoothing option and spawning new NPP-simulating ins ...
Any events in sequencer fire at frame 0 when set to looping
UE - Anim - Sequencer - Mar 28, 2016Any active events fire at frame 0 when the sequence loops ...
Cannot disable the NavLinkProxy through the Smart Link option
UE - AI - May 6, 2015Cannot disable the NavLinkProxy through the Smart Link option. If this is not the proper way to disable the NavLink, users are confused by the naming of 'Link Enabled'. ...
Rendering sequence with livelink data has issues with smooth engine offset
UE - Virtual Production - IO - LiveLink - Apr 26, 2023[Link Removed] for reference Playing back a sequence shouldn't have buffered samples. We should have a single one, which was built from the sequence. We need to make sure when played back that it ...
Custom Blend Graph read only after copy/paste of State Nodes
OLD - Anim - Apr 30, 2015When copy/pasting a state network, if any transition has Custom Blend Logic, the Custom Blend Graph becomes read only in the pasted version. ...
Teleporting to the World Location of a Scene Component in a packaged game will crash the game
UE - Gameplay - Blueprint - Jun 1, 2015Teleporting to the World Location of a Scene Component in a packaged game will crash the game. Teleporting to the Actor Location does not cause this crash. Crash log attached. Nothing is showing up ...
Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client
UE - Networking - May 19, 2015Adding impulse to a Static Mesh Component that is not the root of an Actor Blueprint does not replicate movement to the Client. Reproduced in 4.7.6, 4.8 Preview 3, and Main (//depot/UE4/Promotable- ...
Editor crashes on Shootergame when implementing widget blueprint
Docs - Samples - Sep 30, 2014In Shootergame, adding a widget to the Viewport causes the editor to crash after PIE then re-opening the blueprint calling the widget. Additional Notes: This was repro'd in both main and Github. L ...