Unreal Engine Issues

Crash on loading level with Landscape by 2 PIE instances

Crash when changing Animation Segment Playrate in Animation Composite

See [Link Removed] ...

Crash when using fbx exporter multiple time in the same process

The different fbx exporters do not cleanup the fbx sdk manager ...

InPartialBunch can cause crash in FNetBitReader::CountMemory during memreport

An actor channel's InPartialBunch won't be deleted and cleared until a new partial bunch is received. This can result in a situation where memreport counts the memory for an old InPartialBunch and i ...

Dataprep crash when creating a parameter from a datatable asset or any asset

FTabManager::FindPotentiallyClosedTab Crash Due to Invalid Array Indexing

As you can see from the above callstack it appears that calling RestoreArea can call FindPotentiallyClosedTab again higher in the stack, which can Remove() an entry from CollapsedDockAreas- this cau ...

Crash in ULandscapeComponent::UpdatePhysicalMaterialTask() during landscape sculpting undo operations

Using landscape sculpting tools, then executing Undo with Ctrl+Z ...

Crash when precaching PSOs for decals from non-game thread

During async loading from an AsyncLoading thread, DecalComponent attempts to precache PSOs which can trigger a checkf in StrongObjectPtr.h which are only allowed to be created on a game thread. ...

Editor crash when adding mesh renderer elements in Niagara

When adding multiple meshes to a Niagara Mesh Renderer Module, a check() will be triggered due to a mismatch in the number of Widgets and the number of Tooltip Widgets. ...

Assertion failed: UnscaledViewRect.Width() > 0

Crash when using new FCanvasDrawer Licencee notes that crash does not occur if "new FCanvasDrawer" is commented out. ...