Array inputs in Blueprint Interface results in compiler note- "No value will be returned by reference. Parameter 'NewParam'. Node:"

Array inputs in Blueprint Interface results in compiler note- "No value will be returned by reference. Parameter 'NewParam'. Node:"

Bug reproduced in 4.16, 4.17, and 4.18

Test Project and Blueprint screenshot attached

1. Open blank new project
2. Create new Blueprint Class> Actor Component
3. In Actor Component, add Variable type "Material Interface - Object Reference"
4. Create new Blueprint Interface and assign an Input Variable type "Material Interface - Object Reference"
5. In Actor Component, set up Blueprint as shown in attached image.
6. Compile

Result: A note is added to the Compiler Results. "No value will be returned by reference. Parameter 'NewParam'. Node:"