Initially posted on the AP Windows Beta folder before release but no response so will try here.
I was seeing behaviours below on the beta 220.127.116.11 on Windows 10, and still seeing the same on the released version 18.104.22.168. Firstly 1. Take rasterised (pixel) photo 2. select paint brush tool and set colour to white (or any other colour) 3. hover brush over photo - there's white within the shape of the brush,
4. press Q for quick mask while the white colour is still in the brush shape 5. Brush leaves white brush mark on photo 6. If you go on to define a quick selection, ie paint in quick mask mode without clicking again, then press Q again to see selection - there's a white brush mark within the selection.
7, If you click off layer visibility and then click it again to turn on, the white circular paint mark disappears leaving just the selection - or wipe the brush over the white mark without clicking.
Note: When you first select paint brush tool with the white dot inside ie step 2, if you wait a second or two the white within the brush shape becomes transparent and then you can proceed to selection without any problems.
Secondly Enter quick mask mode and then choose a grey to paint for a selection with some transparency. When deselect Quick mask mode, there are no marching ants. However, if you duplicate the layer you have the selected contents (painted) area with transparency. I assume there should be marching ants to show the initial selection.
Is anyone else seeing these behaviours?