Water Tab on Web version

Hi, For some reason the salt additions are combining and not splitting into the Design Tab as Mash and Boil when using the Web version. This did work but I cannot now get this to work on my latest recipe. The Merge Mash and Sparge Salts check box is not checked! To overcome this I have had to move the recipe to the Desktop version, add the water and salts and then move back to web version.
Any assistance appreciated!