Disabling the white matte removal on PSD breaks the workflow if you depend on using psd files for ui and utilizing layer effects such as drop shadows in photoshop.
Can you at least add a checkbox to the importer to enable white matte removal as an option?
White matte removal was disabled in 2018.2.0b6
"Editor: When importing PSD, we no longer tweak its colors to remove white matte color impact. That means that texture colors will look exactly same as if image was "flattened" in photoshop (alpha is kept intact)"