Unreal Engine Issues
Unreal Engine Issues
RVT output from Landscape Height gets incorrect mip cache loaded
UE - Graphics Features - Oct 13, 2021I test it for more information for your reference:It happens only when a Landscape *Height *was output to the RVT, other Landscape's maps like BaseColor are all fine, as well as Height output from o ...
Light as If Static setting does not Persist when Re-opening Project
Tools - Apr 28, 2016This bug was originally entered back in 4.8 as [Link Removed], but was closed as by design. The reason was, the mesh did not have Lightmap UVs, so using the 'Light as If Static' option would not wor ...
Mouse cursor position is locked to center of screen when bShowMouseCursor is false
Tools - Nov 16, 2016When you set bShowMouseCursor to false in a Standalone or packaged game while Default Viewport Mouse Lock Mode is set to either Always Lock or Lock on Capture, the cursor will become locked in place ...
[CrashReport] UE4Editor_Core!FFileHandleWindows::Seek() [windowsplatformfile.cpp:501]
UE - Foundation - Core - Aug 29, 2017This is common crash coming out of the 4.17 and 4.18 releases. The callstack is similar to an old unresolved import crash: [Link Removed] User Descriptionsrebuilding lightbuilding lighting from a d ...
[CrashReport] Crash in PHAT on LeftMouse click while moving ragdoll asset during Simulate
UE - Simulation - Physics - Oct 25, 2017Crash occurs in the updated Physics Asset Editor if you LeftClick while moving a ragdolled asset during Simulation. This is a regression from 4.17.2 User Descriptionsin the new physics asset edit ...
HLODs appear dark/near black when built for very large geometry with Virtual Textures enabled
UE - World Creation - Worldbuilding Tools - HLOD - Jan 27, 2025Building HLODs for a very large landscape with Virtual Textures enabled results in the built HLODs being very dark for the most part. Building the same large landscape's HLODs with Virtual Textures ...
Cooker is asserting in Class.h on UE 5.7.1
UE - CoreTech - Dec 18, 2025From the linked EPS case: ---------------------------- In UE 5.7 there were some changes to how Enum member names are stored. This change introduces an assert when cooking using the Editor Debug e ...
Crash removing a split parameter pin that is linked
UE - Gameplay - Blueprint Editor - Jun 13, 2017Crash occurs if the user splits an Output Parameter on a function, then links one of the pins, and then removes the parameter entirely. I could not reproduce this in Main. ...
Split Pins on a referenced Macro Library will crash the editor on restart
UE - Gameplay - Blueprint - Mar 3, 2016Split Pins on a referenced Macro Library will crash the editor on restart 2 callstacks include, one for 4.10.4 and one for 4.11 Preview 6 User Description: I got some macros in my Object Macro Li ...
Precise Click is not working correctly with Buttons
UE - Editor - UI Systems - Oct 6, 2016A licensee reported an issue where a recent change to SButton.cpp in 4.13 causes an issue with Precise Click in multiple situations, his example being the one described in the repro steps, which is ...