Unreal Engine Issues
Unreal Engine Issues
Landscape Layer Blend Nodes Improperly Update when Input Pins are Changed from Weight/Alpha to Height Blends
UE - LD & Modeling - Terrain - Landscape - Jun 3, 2015Landscape layer blend nodes do not properly update input pins when layer pins are changed from alpha/weight blends to a height blend if the pins are populated during the change. ...
OnSmartLinkReached Event Not Firing in PIE
UE - AI - Sep 20, 2016The OnSmartLinkReached event is not firing in PIE. This is a regression. In 4.12.5 the event fires as expected. Found in 4.13.0 CL 3106830 Reproduced in 4.14 Main CL 3129233. ...
Client crash on seamless travel in DataReplication with lag
UE - Networking - Jan 11, 2016When server traveling, client may crash due to lag while attempting to replicate object/property. ...
Renaming Function Parameters Silently Disconnects Pins if Function is in Use
UE - Gameplay - Blueprint Editor - Feb 9, 2017Changing parameter names on a function that is in use in another blueprint breaks the pin connections without warning if the blueprint is not saved before restarting the editor. See the licensee's ...
Preserve Non-Uniform Scale doesn't work for child actors
UE - Gameplay - Components - Feb 16, 2017Preserve Non-Uniform Scale doesn't work for child actors when they are scaled smaller than the parent. Licensee Description: I just noticed that the option does not seem to work if the object is p ...
Variable Reset on Child in level
UE - Gameplay - Blueprint - Apr 24, 2017For a child instance inside of the level, the value of a parent int variable will reset if you add a new variable in the child and if there is a function in the parent that has the child as an outpu ...
Occasional crash when attempting to in-app purchase on Android device
UE - Online - Apr 21, 2021App is frequently terminated with a NullPointerException when attempt to request in-app purchase. It is assumed that product information cannot be retrieved if there is no Google account logged in t ...
Cook non-determinism when serializing UObject pointers pointing to garbage
UE - CoreTech - UObject - Aug 25, 2025There's a cook determinism issue in the way UObject unversioned serialization handles UObject pointers pointing to garbage. Depending on GC timing, it can either be skipped (as a property matching C ...
Cross-Compiling for Linux-ARM fails to compile
Tools - Aug 11, 2015Following the directions on the wiki for cross compiling on Linux ([Link Removed]) fails when trying to package the project. ...
AI Controller Remains in World Outliner After Being Destroyed
UE - AI - Apr 18, 2017Destroying an AI Controller does not seem to remove it from the world. The controller will still remain in the World Outliner even after Destroy is called. Attempting to get the AI Controller after ...