Unreal Engine Issues

Rendered landscape heights for ES31 doesn't match SM5 since engine version 4.25

Switching between SM5 and ES31 views in the Editor shows some small variation in landscape heights. ES31 heights are stored in the vertex with some slight lossy compression so subtle variation can ...

Level Bounds Incorrectly Calculated If Particle System Does Not Have "Use Fixed Relative Bounding Box" Enabled

If "Use Relative Fixed Bounding Box" is disabled, level bounds will be incorrectly calculated. This seems to be similar to [Link Removed]. Found in 4.19 CL# 4033788, 4.20 CL# 4212847, 4.21 CL# 4233 ...

Bisecting a BSP with another BSP with an axis scale value at < .25 breaks bsp faces

Bisecting a BSP with another BSP with an axis scale value at a value < .25 breaks bsp faces, causing them to no longer render correctly. NOTES The value at which this begins to occur is 0.249992 ...

Fix PrimitiveComponent overlap indirection

When doing overlap tests in PrimitiveComponent, UWorld->ComponentOverlapMulti is used. The callstack for that ends up looking like this (callstack is inverted, highest level on top): UWorld::Compo ...

Launching Android project to device results in Assertion Failed: AsyncLoading.cpp, Line 3710

After updating to 4.25.1 from 4.25 Packaged Android game crashes constantly with objects added to the map 4.25 Packaged game did not crash (editor did a lot but glad thats fixed in 4.25.1) Empty map ...

Fixed frame interval playback should be off by default

Niagara Vector Field CPU access Error prevents its use in projects

Niagara VectorFields do not function properly since "Fix CPU Access" changes are not persistently saved. After every Editor restart or reopening projects, the Niagara-VectorField driven Emitter and ...

Widgets stick out from letterboxed player screen on 4.25

Note:   Clipping on letterboxed player screen works fine on 4.24.   This issue was brought in by CL#10541213. Here's a workaround TSharedPtr<SGameLayerManager::FPlayerLayer> SGameLayerManager::Fin ...

Fix AGameModeBase::GetGameSessionClass

AGameModeBase::GetGameSessionClass wasn't properly returning the set GameSessionClass. ...

Fixing a Blueprint's compilation error after editor reload causes instances to lose transform

Saving and reloading a Blueprint instance with a compilation error, a.k.a., "Bad Blueprint" will lead to a transform reset when the Blueprint is successfully recompiled. ...