There is an issue occuring where TransformVector node break compilation material instance but primary material is successfully compiled. When using a custom node to set the value this node intends to do, there is no issue and the expected result can be achieved. This does not appear to be a regression.

Versions Tested: Issue occurs in all versions tested
4.18.3 CL - 3832480
4.17.2 CL - 3658906
4.19p3 CL - 3861363

Steps to Reproduce
  1. Open project provided
  2. Open Test_M and Test_MI and make sure each are compiled
  3. In Test_MI Check the box for "Rotate UV 90"
    Result: Material instance now produces an error and cannot display correctly
    Expected Result: Material Instance Does not display an error

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Affects Versions4.174.184.19
CreatedJan 31, 2018
UpdatedNov 14, 2019