In other plugins e.g. Analog Efex Pro 2, the Compare button flips back to the unprocessed layer for comparison while held down.
However, in Silver Efex Pro 2, clicking and holding the Compare button displays the current layer processed with the default Silver Efex Pro 2 preset. The first time I click it, the image flashes briefly.
Shouldn’t this behave as it does in Analog Efex?
On Windows 7x64 Pro, Photoshop CC 2018