This occurs in //UE4/Release-4.15, //UE4/Dev-Editor, and //UE4/Main

Does not occur in 4.14.3

Steps to Reproduce
  1. Import a skeletal mesh via FBX
  2. Right click the skeletal mesh asset and click Reimport

Result: Observe that upon reimport, all of the material assignments in the material slots are cleared out

Expected: Material assignments should be maintained on reimport

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Affects Versions4.154.16
Target Fix4.15
Fix Commit3278195
Main Commit3389599
Release Commit3278195
CreatedJan 30, 2017
ResolvedJan 30, 2017
UpdatedFeb 4, 2019