Unreal Engine Issues
Unreal Engine Issues
Structured log automated decimal number tests fail in languages / cultures that use commas instead of periods
UE - Foundation - Jul 17, 2025The following Localisation Tests in "Engine\Source\Runtime\Core\Tests\Logging\StructuredLogFormatTest.cpp:275" TestLoc(LOCTEXT("Float", " {Float} "), ANSITEXTVIEW(R"(128.25)")); TestLoc(LOCTEXT ...
ContentExamples: Animation Stand 1.10 after unpossessing character the camera spawns too low causing a pop when moving again
Docs - Samples - Jan 19, 2017Occurring on all native platforms. ...
Alembic Importer does not import the correct amount of curves when using the Minimum Number Of Vertex Influence Percentage setting
UE - Gameplay - Jan 3, 2017This is a regression from 4.14.2 ...
Stream media source freezes after playing for a short period of time (10 sec. -1 Min.) on Oculus Go
UE - Platform - XR - Jun 7, 2018When using streamed media source in combination with the oculus go, the video appears to freeze before completion on the device. ...
Full Screen Native Resolution not supported on new iPad Pro 11-inch and iPad Pro 12.9 inch (3rd generation)
UE - Platform - Mobile - Nov 16, 2018A licensee has reported that Full Screen native resolution does not work properly on the iPad Pro 11-inch and on the iPad Pro 12.9-inch (3rd generation). Black borders are used around the screen ins ...
Crash during Datasmith file import when not using Keep Hierarchy
TM - Datasmith Exporter - Jun 24, 2025Reported to support. The user has reported that one of their .udatasmith files will consistently crash in TM 2025.1.1 during import. This was consistently reproducible when importing using Collaps ...
HLSLCC crashed on parsing UAV related instruction
UE - Graphics Features - Oct 10, 20191.glsl_type with image was not fully inited with HlslName field set, causing the crash 2.seems many types of op are not support by current hlslcc, cause error msg. e.g. RWTexture2D.Load[Image Remo ...
When using StringToBytes() it returns an incorrect value
UE - Foundation - Core - Jan 4, 2018When using the StringToBytes() function it returns one less byte due to the -1 at the end of the return. The function takes a string and converts it to bytes but it always returns one less byte than ...
Bug in ULevel::FixupActorFolders.
There is a potential bug in ULevel::FixupActorFolders() in the FixDuplicateFolders section: Suppose you have a folder hierarchy that looks like this:A B(1)B(2) C(1)B(3) C(2) where the letters ...
NaN is handled differently when clamped on Windows and Android/iOS
UE - Platform - Mobile - Oct 18, 2017NaN (Not a Number) is handled different when clamped on Windows and Android/iOS. If you clamp a NaN (Acheived by -3 ^ 0.2 in the reproduction project) from 0.0 to 1.0 and then print the result, you' ...