Unreal Engine Issues

UE-70896

Setting a Vector value in the Material Parameter Collection causes crash

Setting a Vector value in the Material Parameter Collection causes crash

Description

Creating a Vector parameter within the Material Parameter collection causes a crash with the engine.

 

Tested in 4.21.2 (CL - 4753647), 4.22 (CL - 5159901), 4.23 (CL - 4980862)

Steps to Reproduce
  1. Create a Blank project
  2. Make a Material Parameter Collection
  3. Create a Vector Parameter

 

Result: The engine crashes

Expected: A new Vector parameter is created

Callstack

LoginId:5964f8f84766f4b976277180442869c1
EpicAccountId:d237bdd466454ba6a10848877d154538

Assertion failed: MappedSubresource.RowPitch >= ConstantBufferSize [Link Removed] [Line: 269]

UE4Editor_Core
UE4Editor_D3D11RHI
UE4Editor_D3D11RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_RHI
UE4Editor_SlateRHIRenderer
UE4Editor_SlateRHIRenderer
UE4Editor_SlateRHIRenderer
UE4Editor_Core
UE4Editor_Core
UE4Editor_RenderCore
UE4Editor_RenderCore
UE4Editor_Core
UE4Editor_Core
kernel32
ntdll

Community References

FBX animation import crash

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Duplicate
ComponentUE - Graphics Features
Affects Versions4.22, 4.23
Target Fix4.22
CreatedMar 1, 2019
ResolvedMar 4, 2019
UpdatedApr 3, 2019