SetTextureParameterValue stopped working with Dynamic Material Instances (from Blueprints)

Textures in Post Process Blueprints do not update with Dynamic Material Instances. Scalar and Vector Parameters update as expected, but Textures do not.

Note

This was attempted with both a material and material instance in the post process blueprint

1. Download, unzip, open attached project
2. Open level 'Test'
3. Select 'Cameleon' in World Outliner
4. In Detail's Pane, switch the texture to another texture

Results

Texture does not update

Expected

Texture in Post Process Volume updates to new texture