Unreal Engine Issues
Unreal Engine Issues
Cannot Scroll down to events with advanced options expanded
UE - Editor - UI Systems - Slate - May 31, 2017When using UMG and enabling advanced options then deselecting and reselecting the asset can cause issues with the scrollbar length and cause some options to be initially cut off. The scrollbar then ...
UE4 Crashes if multiple Vive Trackers or Lighthouses are used
UE - Platform - XR - Jan 24, 2018User reports that if more than 5 trackers are connected, UE4 crashes Suggested fix: Root cause of bug is related to the fact that UE has no setup to receive input events from Vive Trackers. (we ha ...
Crash in UDataTable::RemoveRow(FName RowName)
UE - Core - Systems - Jun 13, 2025This is a regression, the crash seem to have been introduced by CL 40129784 on ue5-main and persists in latest. Function UDataTable::RemoveRow(FName RowName) uses macro DATATABLE_CHANGE_SCOPE_SINGL ...
Regression: Several project settings, especially from built-in Plugins, are being silently erased when previously they were not, which is perceived as a bug
UE - Core - Systems - Feb 28, 2025In UE's Project Settings, some pages are saved automatically to the project's "Config/Default<CATEGORY>.ini" file (meant to be version-controlled) on every change. Other pages have buttons "Set as D ...
Level will crash if Landscape material layer can't find LayerInfo file.
UE - LD & Modeling - Terrain - Landscape - Sep 8, 2016Artist had problem open his level after LayerInfo file was deleted ...
Regression: Cannot import Landscape Layer Weightmap along with Heightmap because of broken resolution check for tiled images.
UE - Graphics Tools - Terrain - Jan 30, 2025When working in the "Landscape" editor mode, in both the "New" and "Import" tools, it is possible to import a single heightmap, as well as a weightmap for each layer. Each of these maps can come fro ...
Level Instance: failed check in duplication code when embedding
UE - World Creation - Worldbuilding Tools - Level Instances - Aug 2, 2021Mentioned in this UDN is the possibility that duplication of some actor fails because their BP as been deleted. ...
Crash opening projects from GitHub master branch
Tools - Sep 1, 2015Trying to create/open projects in the current github master branch will quietly fail at 94% with no crash error or logs.UE4Editor-Core.dll!rml::internal::Block::findObjectSize() UE4Editor-Core.dll! ...
Linux UI highlights when dragging the editor window
UE - Platform - Linux - Mar 2, 2016Buttons and other UI elements of the Linux editor are highlighted when they are over the pointer's original click position. ...
3D widgets not clickable by Client 2 in multiplayer
UE - Editor - UI Systems - Dec 8, 2014When using a 3D widget the user cannot click on buttons when on the client 2 of a multiplayer game. ...