Hey guys,

I'm a first time map making and love the look of the Saderan maps made via the tutorial. I'm following it up until Page 6, after I've applied a layer mask to Ocean Elevation. I'm then following the instruction to "paint white". I have a brush selection, I'm painting white where I can... but it doesn't turn up. The mask still shows as pure black, and it doesn't change the overall map at all. I tried just carrying on and the same thing happens when I try and copy the process on land elevation.

Any ideas on what could be going wrong?