When importing multiple SpeedTree assets that use the same material will cause one to import blank (black) materials and assigned. This happens when importing into the same folder, however, if imported into separate folders and merged will not cause the issue.

This originally worked in 4.7.6 but was broken in 4.8 and 4.9.

Steps to Reproduce

1. Open UE4
2. Import the assets attached to this JIRA.
3. Use default settings
4. Import both of the SpeedTree files to the same folder

Result: Textures will not be assigned to the material correctly.

Expected: Textures will be assigned tot he material.

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ComponentUE - Rendering
Affects Versions4.
Target Fix4.11
Fix Commit2848895
Main Commit2857187
Release Commit2848895
CreatedSep 25, 2015
ResolvedJan 29, 2016
UpdatedApr 27, 2018