Unreal Engine Issues

Setting Fullscreen Mode to "Fullscreen" results in Crash when using 4.23 from source

Changing the screen settings to Fullscreen through code or blueprints results in a crash. This only happens in the source version of 4.23 and does not occur in the binary version of 4.23. I have att ...

Spline Mesh Collision doesn't work in packaged game when spawning them at runtime

Spline Mesh Components lose their collision in a packaged game when spawning them at runtime, or modifying them via 'Set Start and End' function at runtime. ...

Crash when committing level instances containing invalid child actor components

Packaging a plugin from Plugins Editor UI wipes the target folder before packaging

"Package Plugin" from Plugin Editor UI will wipe the target folder’s contents first then populate it with plugin files. User was expecting “Package Project” like behavior: Create a new folder in th ...

Static mesh with simulate physics does not update for clients joining after a session has started

Static mesh with simulate physics does not update for clients joining after a session has started ...

Dataprep Import Causing Unloaded Stream Levels to Reappear in Editor

RVT Tiles Update Slowly When Enabling Nanite Tessellation On Landscapes

Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime

Setting "Is Enabled" via the animation timeline in UMG does not appear to work at runtime ...

Crash on Mac for some 4.16 users while opening editor, related to Xcode

This is a common crash on Mac in the 4.16 release. The callstack is fairly generic , so it shares similarities with other Jiras such as [Link Removed] and [Link Removed], but this issue is differen ...

FMath::Eval ignores groupings while solving

This is not a regression. Tested in //UE5/Release-5.0 CL20979098 FMath::Eval ignores groupings while solving problems. This has caused some confusion with users who are expecting the groupings to b ...