Steps to Reproduce
  1. Open the sample project from the attachment.
  2. Right-click the NewMaterial4 and create a material instance.
  3. Double-click the material instance.

The editor will crash and report the error "Assertion failed: (Index >= 0) & (Index < ArrayNum) [Link Removed] [Line: 674] Array index out of bounds: 0 from an array of size 0"

[Link Removed]

[Image Removed]

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Fixed
ComponentUE - Graphics Features
Affects Versions4.26
Target Fix4.27
Fix Commit16036220
Main Commit16122706
Release Commit16036220
CreatedDec 24, 2020
ResolvedApr 16, 2021
UpdatedApr 27, 2021
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