Unreal Engine Issues

DX12/SM6 Sampler Counts increased for empty materials between 5.1 and 5.2

While not a major issue in and of itself, this can cause considerable headaches for materials where sampler counts in 5.1 were at 15/16 or 16/16 and when upgrading to 5.2 are now exceeding the built ...

[CrashReport] UE4Editor_Engine!FMaterialShaderMap::GetMeshShaderMap() [materialshader.cpp:2395]

User comments in crash group:Duplicating material and switched it cause i have to use itChanging a landscape material.I just import World Machine landscape with multi-layered.Crash when reaching 16 ...

[CrashReport] Crash on Mac - UE4Editor-SlateCore.dylib!SWindow::IsVisible()

This is a common crash on Mac in the 4.16 release, and has occurred with low frequency since at least 4.11. Users have not provided any descriptions, so additional information is currently unknown. ...

FBX from DAZ Studio import with errors since 4.7.0

Skeletal or Static Meshes exported from DAZ Studio as 2014 FBXs import with errors since 4.7. The same mesh in 4.6.1 imported without perceived errors. [Image Removed] Attached Files: DAZ_Test.fb ...

Fix forwarding of dedicated flag and number of players when running a functional test

As described in the UDN question, some settings aren't forwarded correctly to the game instance in PIE during a functional test. Proposed patch attached. ...

Fix possible crash if Android audio manager does not support certain properties

Not checking for a property not being supported by audio manager, need to protect it against NULL ...

[CrashReport] Assertion on in UMaterialInterface::InitDefaultMaterials()

This is a common Mac crash occurring in the 4.16.1 release. I have not found any evidence of it occurring on Windows. The callstack closely matches [Link Removed], which was briefly experienced by ...

Put fix for UE-39713 into 4.14.3 (Memory leak in GPURealloc)

DebugEditor checkLockFreePointerList(TLS.NumPartial >= 0 && ((!!TLS.NumPartial) == (!!TLS.PartialBundle))) fails

Occasionally, the Engine/Editor crashes on startup with an assertion in the lock-free void pointer list. ...

"Assertion failed: NumberOfFreeBits >= 0" on clients that attempt to connect to a server with the -NoPacketHandler option

With the rework of IP address resolution in 4.25, this assert now occurs. When no packet handler is used, UPendingNetGame::InitNetDriver calls SendInitialJoin() immediately, before async address res ...