when I'm working on a layer mask, I'm usually able to toggle the red, transparent mask overlay with "<" (on english keyboards it would be "\") to see which parts of the mask I'm currently painting on while still being able to see the original image (I'm not referring to Quick Mask Q). This way I don't need to work on the black&white preview of the mask since I wouldn't be able to look at the original image.
Now since the last few updates, I cannot toggle said mask overlay with "<" while working with a simple brush. For this to work I would also need to press "alt" AND click on the layer mask, which is pretty inconvenient for me.
I find this very strange since pressing "<" when using every other tool works just fine - except with the brush ....
Are there any settings I'm missing for this to work!?