I have a problem with selecting/deselecting layer masks. Normally I use the shortcut key "Alt + click on layer mask" to make the layer mask visible in black/white, this works fine, but when I then click on the thumbnail of the layer image it automatically switched out of the layer mask mode, but this doesn't work now anymore. When I do this now it show the image with a red mask overlay and it stays in a mask modus! When I switch between different layers that have a mask attached, it shows the image with that particular mask in red overlay. The visiblity "eye" in front of all the layers look dimmed and the only way to go out the mask modus looks to be Alt + click on a mask or click on a layer without a mask. I use photoshop release 24.0.0 and in release 23.5.1 on my laptop it switches automatically out of the mask modus when I click on the image thumbnail. Any idea how to get rid of this red overlay ?